fix: Fixed some issues with langsmith json OpenAPI 3.1 spec. #280

Job	Run time
test-cli (ai21.yaml)	1m 2s
test-cli (anthropic.yaml)	51s
test-cli (assemblyai.yaml)	58s
test-cli (cohere.yaml)	1m 21s
test-cli (huggingface.yaml)	49s
test-cli (ipinfo.yaml)	51s
test-cli (langsmith.json)	1m 26s
test-cli (leonardo.yaml)	57s
test-cli (mystic.yaml)	1m 1s
test-cli (ollama.yaml)	51s
test-cli (openai.yaml)	1m 27s
test-cli (petstore.yaml)	51s
test-cli (replicate.yaml)	55s
test-cli (special-cases.yaml)	52s
test-cli (together.yaml)	54s
test-cli (heygen.yaml)	51s
test-cli (instill.yaml)	1m 4s
test-cli (ideogram.yaml)	53s
test-cli (google-gemini.yaml)	53s
test-cli (vectara.yaml)	57s
test-cli (mistral.yaml)	1m 2s
test-cli (elevenlabs.json)	1m 1s
Publish / Build, test and publish	3m 7s
Release	0s
	24m 54s

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