Add langchain-ibm and dependencies:

[jan-janssen]

Checklist

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[conda-forge-webservices[bot]]

Hi! This is the friendly automated conda-forge-linting service.

I wanted to let you know that I linted all conda-recipes in your PR (recipes/ibm-cos-sdk, recipes/ibm-cos-sdk-core, recipes/ibm-cos-sdk-s3transfer, recipes/ibm-watsonx-ai, recipes/langchain-ibm, recipes/lomond) and found some lint.

Here's what I've got...

For recipes/lomond:

• The following maintainers have not yet confirmed that they are willing to be listed here: janssen. Please ask them to comment on this PR if they are.