chore(deps)(deps): bump langchain-openai from 1.1.0 to 1.1.7 in /backend

[dependabot]

Bumps langchain-openai from 1.1.0 to 1.1.7.

Release notes

Sourced from langchain-openai's releases.

langchain-openai==1.1.7

Changes since langchain-openai==1.1.6

release(openai): 1.1.7 (#34640) fix(openai): raise proper exception OpenAIRefusalError on structured output refusal (#34619) fix: handle empty assistant content in Responses API (#34272) (#34296) fix(core): serialization patch (#34455) fix(openai): handle function_call content in token counting (#34379) fix(openai): filter function_call blocks in token counting (#34396)

langchain-openai==1.1.6

Changes since langchain-openai==1.1.5

release(openai): 1.1.6: update max input tokens for gpt-5 series (#34419)

langchain-openai==1.1.5

Changes since langchain-openai==1.1.4

release(openai): 1.1.5 (#34409) fix(openai): rely on langchain-core for setting chunk_position (#34404)

langchain-openai==1.1.4

Changes since langchain-openai==1.1.3

release(openai): 1.1.4 (#34395) revert(openai): switch model from nano to mini when using flex (#34394) fix(openai): Correct hyperlinks in documentation of function with_structured_output (#34385)

langchain-openai==1.1.3

Changes since langchain-openai==1.1.2

test(openai): switch model from nano to mini when using flex (#34336) revert: make integration tests output verbose (#34329) chore(infra,openai): make integration tests output verbose (#34327) release(openai): 1.1.3 (#34325) fix(openai): correct image resize aspect ratio caps (#34192) refactor(standard-tests): improve VCR config (#33968) feat(openai): Use responses API if model is gpt-5.2-pro (#34306) fix(openai): handle missing 'text' key in responses API content blocks (#34198)

langchain-openai==1.1.2

Changes since langchain-openai==1.1.1

release(openai): 1.1.2 (#34302) fix(openai): Allow temperature when reasoning is set to the string 'none' (#34298) feat(langchain,openai): add strict flag to ProviderStrategy structured output (#34149) docs(fireworks,groq,huggingface,mistralai,ollama,openai): x-ref convert_to_openai_tool (#34276) fix(openai): add missing tools param to ChatOpenAI with_structured_output (#34075)

langchain-openai==1.1.1

... (truncated)

Commits

• 25bb36d release(openai): 1.1.7 (#34640)
• 92afcaa fix(openai): raise proper exception OpenAIRefusalError on structured output...
• 7ad1c19 fix: handle empty assistant content in Responses API (#34272) (#34296)
• 4c86e8b chore(groq): document vision support (#34620)
• c1f1641 fix(anthropic): fix version (#34606)
• 225e0fa release(anthropic): 1.3.1 (#34605)
• f021e89 fix(anthropic): CVE-2025-68664 (#34563)
• 578cef9 fix(anthropic): skip cache_control for code_execution blocks (#34579)
• b5c5ba0 release(xai): 1.2.1 (#34604)
• 944b43d fix(xai): count reasoning tokens in output total (#34603)
• Additional commits viewable in compare view

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