chore(deps): bump langchain-community in /application

Bumps [langchain-community](https://github.com/langchain-ai/langchain) from 0.3.19 to 0.4.1.
- [Release notes](https://github.com/langchain-ai/langchain/releases)
- [Commits](https://github.com/langchain-ai/langchain/commits)

---
updated-dependencies:
- dependency-name: langchain-community
  dependency-version: 0.4.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

application/requirements.txt

@@ -30,7 +30,7 @@ jsonpatch==1.33
 jsonpointer==3.0.0
 kombu==5.4.2
 langchain==0.3.20
-langchain-community==0.3.19
+langchain-community==0.4.1
 langchain-core==0.3.59
 langchain-openai==0.3.16
 langchain-text-splitters==0.3.8