[Snyk] Security upgrade transformers from 4.30.2 to 4.48.0#1922

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smg478 wants to merge 1 commit intomainfrom snyk-fix-6543ee2f8420e182b24ef63b72676f5e

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Commits on Jan 16, 2025

fix: reqs_optional/requirements_optional_langchain.metrics.txt to reduce vulnerabilities
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