build(deps): bump langchain-community from 0.2.9 to 0.2.19 in /scripts

Bumps [langchain-community](https://github.com/langchain-ai/langchain) from 0.2.9 to 0.2.19.
- [Release notes](https://github.com/langchain-ai/langchain/releases)
- [Commits](langchain-ai/langchain@langchain-community==0.2.9...langchain-community==0.2.19)

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

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

scripts/requirements.txt

@@ -7,7 +7,7 @@ faiss_cpu==1.7.4
 html2text==2020.1.16
 javalang==0.13.0
 langchain==0.2.10
-langchain_community==0.2.9
+langchain_community==0.2.19
 langchain-openai==0.0.5
 nltk==3.9
 openapi3_parser==1.1.16