chore(deps): bump actions/setup-python from 5 to 6

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>

Author: dependabot[bot]

.github/workflows/coverage.yml

@@ -11,7 +11,7 @@ jobs:
     steps:
       - uses: actions/checkout@v5
       - name: Set up Python ${{ matrix.python-version }}
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v6
         with:
           python-version: ${{ matrix.python-version }}
       - name: Install dependencies

.github/workflows/formatting.yml

@@ -12,7 +12,7 @@ jobs:
     steps:
       - uses: actions/checkout@v5
       - name: Set up Python ${{ matrix.python-version }}
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v6
         with:
           python-version: ${{ matrix.python-version }}
       - name: Install dependencies

.github/workflows/packaging_test.yml

@@ -11,7 +11,7 @@ jobs:
     steps:
       - uses: actions/checkout@v5
       - name: Set up Python ${{ matrix.python-version }}
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v6
         with:
           python-version: ${{ matrix.python-version }}
       - name: Install dependencies

.github/workflows/python-publish.yml

@@ -22,7 +22,7 @@ jobs:
      steps:
        - uses: actions/checkout@v5
        - name: Set up Python ${{ matrix.python-version }}
-         uses: actions/setup-python@v5
+         uses: actions/setup-python@v6
          with:
            python-version: ${{ matrix.python-version }}
        - name: Install tox
@@ -50,7 +50,7 @@ jobs:
      steps:
        - uses: actions/checkout@v5
        - name: Set up Python
-         uses: actions/setup-python@v5
+         uses: actions/setup-python@v6
          with:
            python-version: ${{ matrix.python-version }}
        - name: Install dependencies

.github/workflows/pythonlint.yml

@@ -13,7 +13,7 @@ jobs:
     steps:
       - uses: actions/checkout@v5
       - name: Set up Python ${{ matrix.python-version }}
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v6
         with:
           python-version: ${{ matrix.python-version }}
       - name: Install Dependencies

.github/workflows/unittests.yml

@@ -11,7 +11,7 @@ jobs:
     steps:
       - uses: actions/checkout@v5
       - name: Set up Python ${{ matrix.python-version }}
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v6
         with:
           python-version: ${{ matrix.python-version }}
       - name: Install Dependencies