[ci] Bump actions/setup-python from 4 to 5 (#223)

Bumps [actions/setup-python](https://github.com/actions/setup-python) from 4 to 5.
- [Release notes](https://github.com/actions/setup-python/releases)
- [Commits](actions/setup-python@v4...v5)

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

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

.github/workflows/main.yml

@@ -24,7 +24,7 @@ jobs:
  uses: actions/checkout@v4
 
  - name: Setup Python
- uses: actions/setup-python@v4
+ uses: actions/setup-python@v5
  with:
  python-version: '3.9'
  cache: 'pipenv'

.github/workflows/pull_request.yml

@@ -44,7 +44,7 @@ jobs:
  add_comment: true
 
  - name: Setup Python
- uses: actions/setup-python@v4
+ uses: actions/setup-python@v5
  with:
  python-version: '3.9'
  cache: 'pipenv'