[Snyk] Upgrade langchain from 0.0.156 to 0.2.6

[steve-hb]

This PR was automatically created by Snyk using the credentials of a real user.


Snyk has created this PR to upgrade langchain from 0.0.156 to 0.2.6.

:information_source: Keep your dependencies up-to-date. This makes it easier to fix existing vulnerabilities and to more quickly identify and fix newly disclosed vulnerabilities when they affect your project.

---

- The recommended version is **122 versions** ahead of your current version. - The recommended version was released on **21 days ago**. #### Issues fixed by the recommended upgrade: | | Issue | Score | Exploit Maturity | :-------------------------:|:-------------------------|:-------------------------|:-------------------------  | Regular Expression Denial of Service (ReDoS)
[SNYK-JS-ZOD-5925617](https://snyk.io/vuln/SNYK-JS-ZOD-5925617) | **482** | Proof of Concept

Release notes

Package name: langchain

• 0.2.6 - 2024-06-21
  

  What's Changed

  • Release 0.2.5 by @ jacoblee93 in #5665
  • docs[patch]: Redirects for LangSmith and LangGraph by @ jacoblee93 in #5667
  • community[patch]: Release 0.2.6 by @ jacoblee93 in #5668
  • partners[minor]: Add standard chat model tests to partner packages by @ bracesproul in #5660
  • core[patch]: Fix formatting mustache image templates by @ bracesproul in #5666
  • community[minor]: Add standard tests to community chat models by @ bracesproul in #5669
  • core[release]: Release 0.2.6 by @ bracesproul in #5670
  • docs[patch]: Adds heading keywords for search by @ jacoblee93 in #5678
  • community[patch]: Change neo4j verify connectivity method by @ tomasonjo in #5679
  • partners[patch]: Release partner & community packages by @ bracesproul in #5688
  • openai[patch]: Release 0.1.2 by @ bracesproul in #5689
  • community[patch]: Deprecate Google PaLM integrations by @ bracesproul in #5690
  • docs[patch]: Adds PDF ingestion and QA tutorial by @ jacoblee93 in #5692
  • textsplitters[patch]: Bump dependency range for @ langchain/textsplitters by @ jacoblee93 in #5693
  • textsplitters[patch]: Release 0.0.3 by @ jacoblee93 in #5695
  • docs[patch]: Add deprecation warnings to Google PaLM docs by @ bracesproul in #5696
  • community[patch]: Loosen conflicting peer dep by @ jacoblee93 in #5694
  • community[patch]: Release 0.2.8 by @ jacoblee93 in #5697
  • docs[patch]: Remove duplicated heading section on rag.ipynb by @ froggy1014 in #5674
  • community[patch]: anthropic add tool call support new tools api by @ LordMsz in #5640
  • community[minor]: Fixed ChatWebLLM reload function and updated model name in example by @ kaiwinut in #5671
  • community[patch]: Release 0.2.9 by @ jacoblee93 in #5698
  • docs[patch]: Add crosslinks, add LangGraph and LangSmith sections by @ jacoblee93 in #5702
  • docs[patch]: replace wrong interface API reference link by @ froggy1014 in #5706
  • docs[patch]: Point OpenAI LLM docs at chat models by @ jacoblee93 in #5718
  • docs[patch]: Add pointers from LLM pages to chat model pages by @ jacoblee93 in #5719
  • google[patch]: Release 0.0.18 by @ bracesproul in #5720
  • ci[minor]: Add more packages to lowest/latest deps ci workflow by @ bracesproul in #5703
  • google-vertexai[minor]: Move tests from gauth/webauth into vertexai packages by @ bracesproul in #5722
  • Unstructured in memory loader by @ jacoblee93 in #5726
  • infra[minor]: Add vertexai to latest/lowest ci by @ bracesproul in #5727
  • docs[patch]: Adds streaming conceptual docs by @ jacoblee93 in #5728
  • google-vertexai[minor] Add standard tests by @ bracesproul in #5721
  • openai[minor],docs[minor]: Add parallel tool calls call option and docs by @ bracesproul in #5717
  • community[patch]: allow to use postgres pool instance on PostgresRecordManager by @ josemussa in #5677
  • community[major]: DeepInfra llm and chat by @ ovuruska in #5672
  • anthropic[patch]: Stream tokens by @ bracesproul in #5730
  • openai[patch],azure-openai[patch]: Update legacy classes to respect the apiKey field by @ scottforte in #5714
  • community[patch]: Release 0.2.10 by @ jacoblee93 in #5739
  • azure-openai[patch]: Release 0.0.11 by @ jacoblee93 in #5740
  • openai[patch]: Release 0.1.3 by @ jacoblee93 in #5741
  • ci[patch]: Only run CI testsing if specific package touched by @ bracesproul in #5733
  • cohere[minor]: Fix token counts, add usage_metadata by @ bracesproul in #5732
  • cohere[patch]: Release 0.1.0 by @ bracesproul in #5747
  • docs[patch]: Adds structured output section to concepts by @ jacoblee93 in #5750
  • docs,examples[patch]: Replace .getRelevantDocuments with .invoke by @ bracesproul in #5749
  • mistral[minor]: Populate usage metadata for mistral by @ bracesproul in #5751
  • ci[patch]: Always run standard tests by @ bracesproul in #5755
  • openai[patch]: Fix tool content list by @ bracesproul in #5756
  • Fix [ERR_REQUIRE_ESM] error when importing hf_transformers by @ JonaMX in #5746
  • community[minor]: Update SingleStore vector store by @ volodymyr-memsql in #5715
  • community[patch]: Release 0.2.11 by @ jacoblee93 in #5758
  • google-genai[minor]: Add support for token counting via usage_metadata by @ bracesproul in #5757
  • docs[patch]: Update embeddings conceptual docs by @ jacoblee93 in #5759
  • docs: Graph tutorial updates by @ iPagar in #5762
  • google-genai[patch]: Nit standard tests by @ bracesproul in #5764
  • google-common[minor]: Add stream_usage by @ bracesproul in #5763
  • google-genai[patch]: Bump min core version by @ bracesproul in #5765
  • core[patch]: Account for escaped variables in mustache templates by @ bracesproul in #5775
  • docs[minor]: Add tool runtime args doc by @ bracesproul in #5767
  • update model name in these for making them eligible for multimodality by @ tanyaasharma in #5777
  • docs[patch]: Reorder streaming guide by @ jacoblee93 in #5784
  • docs[patch]: Adds RAG guide to concepts, semantic similarity to howtos by @ jacoblee93 in #5783
  • google-genai[minor]: Add support for tool messages as inputs by @ bracesproul in #5785
  • google-genai[patch]: Release 0.0.18 by @ bracesproul in #5787
  • docs[patch]: Adds evaluation links to concepts, how tos, tutorials by @ jacoblee93 in #5790
  • core[minor]docs[minor]: new tool wrapper by @ bracesproul in #5782
  • core[patch]: Release 0.2.7 by @ jacoblee93 in #5794
  • community[minor]: Update ChatWebLLM to match dependency version and update example by @ Neet-Nestor in #5776
  • community[minor]: Add Indexing API support for Milvus by @ miloradvojnovic in #5760
  • community[patch]: Fix PostgresRecordManager table being created with name 'undefined' by @ MJDeligan in #5796
  • google-genai[patch]: Fix removing additionalProperties edge case by @ bracesproul in #5798
  • google-genai[patch]: Release 0.0.19 by @ bracesproul in #5799
  • docs[patch]: Fix docs build issues with empty lib artifacts by @ jacoblee93 in #5800
  • community[patch]: Release 0.2.12 by @ jacoblee93 in #5802
  • docs[patch]: Adds docs feedback text by @ jacoblee93 in #5801
  • Jacob/docs by @ jacoblee93 in #5807
  • docs[patch]: Update deprecated entrypoints by @ jacoblee93 in #5808
  • google-genai[patch]: Update tool message parsing by @ bracesproul in #5804
  • google-genai[patch]: Release 0.0.20 by @ bracesproul in #5814
  • core[minor]: Add ID field to messages by @ bracesproul in #5817
  • core[minor]: Message transformers by @ bracesproul in #5789
  • core[patch]: Release 0.2.8 by @ bracesproul in #5819
  • docs[patch]: Update Anthropic model example by @ jacoblee93 in #5826
  • docs[patch]: Update azure_openai.mdx with proper env name by @ warlockdn in #5822
  • community[minor]: Support configurable index creation for Milvus by @ yokingma in #5821
  • core[minor],community[minor]: Add message id tests by @ bracesproul in #5827
  • docs[patch]: Correcting zod types for OAI parallel tool calling doc by @ gurpreetlogiciel in #5824
  • openai[patch]: Populate ID field by @ bracesproul in #5818
  • community[patch]: feat: Make Zep Memory message merging optional by @ paul-paliychuk in #5803
  • community[patch]: feat: add headers param to cheerio loader by @ versole in #5806
  • community[patch]: Fix issue with inserting documents in Milvus with autoId enabled by @ miloradvojnovic in #5829
  • core[patch]: add more mustache variable types by @ bracesproul in #5831
  • docs[patch]: Update link by @ jacoblee93 in