Bump flask from 2.2.0 to 2.2.1
Bump flask from 2.2.0 to 2.2.1

Bumps [flask](https://github.com/pallets/flask) from 2.2.0 to 2.2.1.
- [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/2.2.0...2.2.1)

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

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>
tutorcruncher/uk-postcode-api