langchain-openai==0.3.29

Changes since langchain-openai==0.3.28

release(openai): release 0.3.29 (#32463)
chore: formatting across codebase (#32466)
fix(openai): revert some changes (#32462)
feat(openai): minimal and verbosity (#32455)
fix(openai): don't crash get_num_tokens_from_messages on gpt-5 (#32451)
feat(openai): custom tools (#32449)
test(openai): add tests for prompt_cache_key parameter and update docs (#32363)
fix(openai): add in output_text (#32450)
chore(openai): bump openai sdk (#32322)
fix(openai): add max_retries parameter to ChatOpenAI for handling 503 capacity errors (#32286)
fix: formatting issues in docstrings (#32265)
feat(docs): improve devx, fix Makefile targets (#32237)
fix: LLM mimicking Unicode responses due to forced Unicode conversion of non-ASCII characters. (#32222)
fix(docs): capitalization, codeblock formatting, and hyperlinks, note blocks (#32235)
docs(openai): add comprehensive documentation and examples for extra_body + others (#32149)