Bump flask from 2.0.1 to 2.3.2

Bumps [flask](https://github.com/pallets/flask) from 2.0.1 to 2.3.2.
- [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/2.0.1...2.3.2)

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

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

requirements.txt

@@ -7,7 +7,7 @@ chardet==4.0.0
 click==8.0.1
 discord-webhook==0.14.0
 flake8==3.9.2
-Flask==2.0.1
+Flask==2.3.2
 idna==2.10
 isort==5.8.0
 itsdangerous==2.0.1