Bump flask from 3.1.0 to 3.1.1

Bumps [flask](https://github.com/pallets/flask) from 3.1.0 to 3.1.1.
- [Release notes](https://github.com/pallets/flask/releases)
- [Changelog](https://github.com/pallets/flask/blob/main/CHANGES.rst)
- [Commits](https://github.com/pallets/flask/compare/3.1.0...3.1.1)

---
updated-dependencies:
- dependency-name: flask
  dependency-version: 3.1.1
  dependency-type: direct:production
...

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

pyproject.toml

@@ -13,7 +13,7 @@ ago = "~=0.1.0"
 beautifulsoup4 = "^4.13.3"
 blinker = "~=1.8"
 exceptiongroup = "==1.2.2"
-flask = "~=3.0"
+flask = "~=3.1"
 flask-basicauth = "~=0.2"
 flask-login = "^0.6"
 flask-talisman = "*"