Bump actions/setup-python from 5 to 6 (#325)

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
...

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

Author: dependabot[bot]

.github/workflows/docs.yml

@@ -28,7 +28,7 @@ jobs:
       uses: actions/checkout@v5.0.0
 
     - name: Set up Python 
-      uses: actions/setup-python@v5
+      uses: actions/setup-python@v6
       with:
         python-version: 3.x
         cache: pip

.github/workflows/linting.yml

@@ -20,7 +20,7 @@ jobs:
           key: pre-commit-${{ '{{' }} hashFiles('.pre-commit-config.yaml') {{ '}}' }}
 
       - name: Set up Python
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v6
         with:
           python-version: "3.x"
           cache: pip

.github/workflows/tests.yml

@@ -68,7 +68,7 @@ jobs:
   
     - if: matrix.os != 'macos-latest'
       name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v5
+      uses: actions/setup-python@v6
       with:
         python-version: ${{ matrix.python-version }}
         cache: pip