chore(deps): bump pydantic-settings from 2.1.0 to 2.4.0 in /application

Bumps [pydantic-settings](https://github.com/pydantic/pydantic-settings) from 2.1.0 to 2.4.0.
- [Release notes](https://github.com/pydantic/pydantic-settings/releases)
- [Commits](https://github.com/pydantic/pydantic-settings/compare/v2.1.0...v2.4.0)

---
updated-dependencies:
- dependency-name: pydantic-settings
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

application/requirements.txt

@@ -18,7 +18,7 @@ langchain==0.1.4
 langchain-openai==0.0.5
 openapi3_parser==1.1.16
 pandas==2.2.0
-pydantic_settings==2.1.0
+pydantic_settings==2.4.0
 pymongo==4.6.3
 PyPDF2==3.0.1
 python-dotenv==1.0.1