Bump flask from 2.3.3 to 3.0.1

Bumps [flask](https://github.com/pallets/flask) from 2.3.3 to 3.0.1.
- [Release notes](https://github.com/pallets/flask/releases)
- [Changelog](https://github.com/pallets/flask/blob/main/CHANGES.rst)
- [Commits](pallets/flask@2.3.3...3.0.1)

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

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

docs/requirements.txt

@@ -3,4 +3,4 @@ sphinx-rtd-theme==1.3.0
 sphinx-click==5.1.0
 
 # Integration examples
-Flask==2.3.3
+Flask==3.0.1