Bump actions/setup-python from 2 to 4

Bumps [actions/setup-python](https://github.com/actions/setup-python) from 2 to 4.
- [Release notes](https://github.com/actions/setup-python/releases)
- [Commits](actions/setup-python@v2...v4)

---
updated-dependencies:
- dependency-name: actions/setup-python
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

action.yml

@@ -32,7 +32,7 @@ runs:
     with:
       fetch-depth: 0
 
-  - uses: actions/setup-python@v2
+  - uses: actions/setup-python@v4
     with:
       python-version: ${{ inputs.python-version }}