Bump py-actions/flake8 from 2.0.0 to 2.2.0 (#806)

Bumps [py-actions/flake8](https://github.com/py-actions/flake8) from 2.0.0 to 2.2.0.
- [Release notes](https://github.com/py-actions/flake8/releases)
- [Changelog](https://github.com/py-actions/flake8/blob/master/CHANGELOG.md)
- [Commits](py-actions/flake8@v2.0.0...v2.2.0)

---
updated-dependencies:
- dependency-name: py-actions/flake8
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/ci-cd.yml

@@ -375,7 +375,7 @@ jobs:
         --requirement requirements-dev.txt
 
     - name: flake8 Lint
-      uses: py-actions/flake8@v2.0.0
+      uses: py-actions/flake8@v2.2.0
       with:
         flake8-version: 4.0.1
         path: aiomysql