ci: bump actions/setup-python from 4 to 5 (#369)

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

.github/workflows/check.yml

@@ -5,7 +5,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-      - uses: actions/setup-python@v4
+      - uses: actions/setup-python@v5
       - name: install tools
         run: pip install flake8 black
       - name: enforce coding styles using flake8

.github/workflows/interop.yml

@@ -82,7 +82,7 @@ jobs:
           echo $STARTTIME
           echo "starttime=$STARTTIME" >> $GITHUB_OUTPUT
       - uses: actions/checkout@v4
-      - uses: actions/setup-python@v4
+      - uses: actions/setup-python@v5
         with:
           python-version: 3.8
       - name: Determine servers
@@ -167,7 +167,7 @@ jobs:
     name: (${{ matrix.server }} - ${{ matrix.client }})
     steps:
       - uses: actions/checkout@v4
-      - uses: actions/setup-python@v4
+      - uses: actions/setup-python@v5
         with:
           python-version: 3.8
       - name: Enable IPv6 support
@@ -254,7 +254,7 @@ jobs:
       LOGNAME: ${{ needs.config.outputs.logname }}
     steps:
       - uses: actions/checkout@v4
-      - uses: actions/setup-python@v4
+      - uses: actions/setup-python@v5
         with:
           python-version: 3.8
       - name: Download results