Bump actions/setup-python from 5 to 6 (#354)

Bumps [actions/setup-python](https://github.com/actions/setup-python) from 5 to 6.
- [Release notes](https://github.com/actions/setup-python/releases)
- [Commits](actions/setup-python@v5...v6)

---
updated-dependencies:
- dependency-name: actions/setup-python
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

.github/workflows/build-python-packages.yml

@@ -154,7 +154,7 @@ jobs:
         working-directory: ${{ runner.temp }}/${{ env.ARTIFACT_NAME }}
 
       - name: Setup Python ${{ env.VERSION }}
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v6
         with:
           python-version: ${{ env.VERSION }}
           architecture: ${{ matrix.arch }}

.github/workflows/releases-validation.yml

@@ -18,7 +18,7 @@ jobs:
         python: [3.9.13, 3.10.11, 3.11.8, 3.12.7, 3.13.0]
     steps:
     - name: setup-python ${{ matrix.python }}
-      uses: actions/setup-python@v5
+      uses: actions/setup-python@v6
       with:
         python-version: ${{ matrix.python }}