chore(deps): Bump langchain from 0.2.16 to 0.3.0 in /examples/functions #5899

Job	Run time
tests-openvoice	3m 14s
tests-diffusers	7m 44s
tests-coqui	2m 45s
tests-parler-tts	7m 43s
tests-rerankers	2m 21s
tests-sentencetransformers	2m 21s
tests-transformers	2m 27s
tests-transformers-musicgen	7m 35s
tests-vallex	8m 20s
	44m 30s

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