build(deps): bump lxml from 5.3.0 to 5.3.1 in /application

Bumps [lxml](https://github.com/lxml/lxml) from 5.3.0 to 5.3.1.
- [Release notes](https://github.com/lxml/lxml/releases)
- [Changelog](https://github.com/lxml/lxml/blob/master/CHANGES.txt)
- [Commits](https://github.com/lxml/lxml/compare/lxml-5.3.0...lxml-5.3.1)

---
updated-dependencies:
- dependency-name: lxml
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

application/requirements.txt

@@ -37,7 +37,7 @@ langchain-openai==0.3.0
 langchain-text-splitters==0.3.5
 langsmith==0.2.10
 lazy-object-proxy==1.10.0
-lxml==5.3.0
+lxml==5.3.1
 markupsafe==3.0.2
 marshmallow==3.26.1
 mpmath==1.3.0