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](pallets/flask@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] <[email protected]>

Author: dependabot[bot]

requirements.txt

@@ -1,7 +1,7 @@
 #
 # Runtime requirements
 
-Flask==3.1.0                    # BSD 3-Clause
+Flask==3.1.1                    # BSD 3-Clause
 Flask-SQLAlchemy==3.1.1         # BSD 3-Clause
 flask-smorest==0.46.1           # MIT
 Flask-Marshmallow==1.3.0        # MIT