[Snyk] Security upgrade langchain from 0.0.91 to 0.0.141

[heathriel]

Snyk has created this PR to fix 1 vulnerabilities in the npm dependencies of this project.

Snyk changed the following file(s):

• package.json

⚠️ Warning

Failed to update the package-lock.json, please update manually before merging.

Vulnerabilities that will be fixed with an upgrade:

	Issue	Score
	Prototype Pollution SNYK-JS-AXIOS-15252993	828

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🦉 Prototype Pollution