langchain langchain-openai==1.5.2a1

Initial release release(openai): 1.5.2a1 (#39709) feat(openai): extract gateway metadata from response headers when available (#39706) chore(openai): update snapshots (#39657) fix(openai): support o-series models in (#38710) release(openai): 1.5.1 (#39653) fix(openai): preserve streamed encrypted reasoning (#39635) chore(infra): support langsmith gateway in CI (#39651) release(openai): 1.5.0 (#39629) feat(openai): support openai 3.0 SDK (#39613) chore(partners): bump langgraph floor in openai and huggingface lockfiles (#39617) release(openai): 1.4.3 (#39485) fix(openai): filter invalid tool calls from content (#39366) chore(openai): update guidance for responses API for OpenAI-compatible providers (#39327) chore(openai): update docstring for (#39326) release(openai): 1.4.2 (#39322) fix(openai): handle (#39300) chore: bump the minor-and-patch group across 3 directories with 7 updates (#39187) fix(openai): filter langchain-generated content block IDs (#39209) fix(openai): preserve Responses options (#39204) fix(openai): redact MCP (#39155) chore(model-profiles): refresh model profile data (#39050) release(openai): 1.4.1 (#39045) feat(anthropic,fireworks,openai): support langsmith gateway through env var (#38742) fix(openai): correct profile (#39009) release(openai): 1.4.0 (#38983) chore: bump pillow from 12.2.0 to…