GitLab

Co-Authored-By: Michael Poluektov <78477503+michaelpoluektov@users.noreply.github.com>

Updated RAG /config and /config/update endpoints to support UI updates.

Fixed .dockerignore to prevent Python venv from being copied into Docker image.

Bumps [langchain-community](https://github.com/langchain-ai/langchain) from 0.2.0 to 0.2.6.
- [Release notes](https://github.com/langchain-ai/langchain/releases)
- [Commits](https://github.com/langchain-ai/langchain/compare/langchain-community==0.2.0...langchain-community==0.2.6

)

---
updated-dependencies:
- dependency-name: langchain-community
  dependency-type: direct:production
  update-type: version-update:semver-patch
...
Signed-off-by: dependabot[bot] <support@github.com>