Chore(deps-dev): Update langchain-openai requirement from <0.4 to <1.2

[dependabot]

Updates the requirements on langchain-openai to permit the latest version.

Release notes

Sourced from langchain-openai's releases.

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)

Commits

• 20b8342 test(openai): switch model from nano to mini when using flex (#34336)
• 2f8af61 release(huggingface): 1.2.0 (#34335)
• 81758e2 release(mistralai): 1.1.1 (#34334)
• 3342e4d release(groq): 1.1.1 (#34332)
• 5842110 release(ollama): 1.0.1 (#34330)
• 62db04c revert: make integration tests output verbose (#34329)
• fb892ee feat(groq): Allow kwargs in with_structured_output to override tool_choice (#...
• 8ad0e9f chore(infra,openai): make integration tests output verbose (#34327)
• d0b13e9 release(openai): 1.1.3 (#34325)
• 6fa4a45 chore(anthropic): bump min core version (#34326)
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