chore(deps): update dependency langchain-core to v1

[renovate-bot]

This PR contains the following updates:

Package	Change	Age	Confidence
langchain-core (source, changelog)	==0.2.33 → ==1.2.7

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[gemini-code-assist]

Summary of Changes

Hello @renovate-bot, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request automates the update of the langchain-core Python package to its latest major version (v1) across several requirements.txt files. This update is crucial for maintaining compatibility with the evolving LangChain ecosystem, incorporating new features, and benefiting from performance improvements or bug fixes introduced in the new major release.

Highlights

• Dependency Update: The langchain-core Python package has been updated from version 0.2.33 to 1.2.7. This is a major version bump, indicating significant changes and potential breaking API modifications.
• Scope of Change: This update has been applied consistently across seven different requirements.txt files within the generative_ai directory, ensuring all related components use the new version.

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[gemini-code-assist]

Code Review

This pull request proposes a major version upgrade for the langchain-core dependency, from 0.2.33 to 1.2.7. This is a significant update that includes breaking changes, as is common when moving from a 0.x version to 1.x. The code that relies on langchain-core will need to be updated to work with the new version's API. Since this PR only contains the dependency update and not the corresponding application code changes, it is incomplete. Merging it as-is would very likely lead to build or runtime failures. It is critical that this dependency upgrade is tested thoroughly and that all necessary code modifications are included before this PR is merged.

[gemini-code-assist]

Updating langchain-core to a major new version (1.x) introduces breaking API changes. This PR is incomplete because it does not include the necessary updates to the application code that uses this library. Merging this change by itself will likely break the application.