Bump flask from 1.1.1 to 2.2.5 in /Flask/flask-tdd-docker

Bumps [flask](https://github.com/pallets/flask) from 1.1.1 to 2.2.5.
- [Release notes](https://github.com/pallets/flask/releases)
- [Changelog](https://github.com/pallets/flask/blob/main/CHANGES.rst)
- [Commits](pallets/flask@1.1.1...2.2.5)

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

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

Flask/flask-tdd-docker/requirements.txt

@@ -10,7 +10,7 @@ flake8==3.7.9
 flask-admin==1.5.4
 flask-restful==0.3.7
 flask-sqlalchemy==2.4.1
-flask==1.1.1
+flask==2.2.5
 greenlet==1.0.0 ; python_version >= '3'
 gunicorn==20.0.4
 importlib-metadata==4.0.0 ; python_version < '3.8'