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>

pyproject.toml

@@ -49,7 +49,7 @@ tests = [
   "pytest-cov==6.0.0",
   "coverage==7.6.4",
   "werkzeug==3.1.1",
-  "flask==3.0.3",
+  "flask==3.1.0",
   "marshmallow==3.23.1",
   "webargs==8.6.0",
   "apispec==6.7.0",