build(deps): Bump flask from 3.0.3 to 3.1.0

Bumps [flask](https://github.com/pallets/flask) from 3.0.3 to 3.1.0.
- [Release notes](https://github.com/pallets/flask/releases)
- [Changelog](https://github.com/pallets/flask/blob/main/CHANGES.rst)
- [Commits](pallets/flask@3.0.3...3.1.0)

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

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

requirements.txt

@@ -2,7 +2,7 @@ mypy==1.11.1
 prospector[with_everything]==1.10.3
 jsonpickle==3.2.2
 Django==5.1
-Flask==3.0.3
+Flask==3.1.0
 #can't upgrade to the latest version of Pylint due to a mismatch on astroid versions
 #requirements-detector (from prospector) 1.2.2 depends on astroid<3.0 and >=2.0
 #pylint 3.x depends on astroid<=3.3.0-dev0 and >=3.2.4