Bump langchain-community from 0.2.10 to 0.2.19

Bumps [langchain-community](https://github.com/langchain-ai/langchain) from 0.2.10 to 0.2.19.
- [Release notes](https://github.com/langchain-ai/langchain/releases)
- [Commits](langchain-ai/langchain@langchain-community==0.2.10...langchain-community==0.2.19)

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

Signed-off-by: dependabot[bot] <[email protected]>

requirements.txt

@@ -36,7 +36,7 @@ Jinja2==3.1.4
 jsonpatch==1.33
 jsonpointer==2.4
 langchain==0.2.11
-langchain-community==0.2.10
+langchain-community==0.2.19
 langchain-core==0.2.23
 langchain-text-splitters==0.2.1
 langchainplus-sdk==0.0.20