chore(deps): bump langchain-community

Bumps [langchain-community](https://github.com/langchain-ai/langchain) from 0.2.19 to 0.3.27.
- [Release notes](https://github.com/langchain-ai/langchain/releases)
- [Commits](langchain-ai/langchain@langchain-community==0.2.19...langchain==0.3.27)

---
updated-dependencies:
- dependency-name: langchain-community
  dependency-version: 0.3.27
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

databases/postgres-pgvector/docker/embed-docs/requirements.txt

@@ -1,7 +1,7 @@
 google-cloud-storage==2.18.2
 google-cloud-aiplatform==1.65.0
 langchain==0.2.17
-langchain-community==0.2.19
+langchain-community==0.3.27
 langchain-google-vertexai==1.0.10
 pgvector==0.3.2
 psycopg2-binary==2.9.9