[Snyk] Security upgrade langchain from 0.0.156 to 0.3.3

[steve-hb]

Snyk has created this PR to fix 2 vulnerabilities in the npm dependencies of this project.

Snyk changed the following file(s):

• package.json
• package-lock.json

Vulnerabilities that will be fixed with an upgrade:

	Issue	Score
	Arbitrary File Write via Archive Extraction (Zip Slip) SNYK-JS-LANGCHAIN-8310293	738
	SQL Injection SNYK-JS-LANGCHAIN-8310492	391

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