build(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] <[email protected]>

Author: dependabot[bot]

.github/workflows/docs.yaml

@@ -26,7 +26,7 @@ jobs:
      runs-on: ubuntu-latest
      steps:
        - uses: actions/checkout@v5
-       - uses: actions/setup-python@v5
+       - uses: actions/setup-python@v6
          with:
            # Set the python version to 3.12 to keep imghdr for sphinx.
            # TODO: update sphinx to remove imghdr dependency

.github/workflows/integration.yaml

@@ -41,7 +41,7 @@ jobs:
      runs-on: ubuntu-latest
      steps:
        - uses: actions/checkout@v5
-       - uses: actions/setup-python@v5
+       - uses: actions/setup-python@v6
          with:
            python-version: 3.13
            cache: 'pip'
@@ -98,7 +98,7 @@ jobs:
      name: Python ${{ matrix.python-version }} RESP${{ matrix.protocol-version }} ${{matrix.test-type}}-${{matrix.connection-type}} tests
      steps:
        - uses: actions/checkout@v5
-       - uses: actions/setup-python@v5
+       - uses: actions/setup-python@v6
          with:
            python-version: ${{ matrix.python-version }}
            cache: 'pip'
@@ -157,7 +157,7 @@ jobs:
         extension: ['tar.gz', 'whl']
     steps:
       - uses: actions/checkout@v5
-      - uses: actions/setup-python@v5
+      - uses: actions/setup-python@v6
         with:
           python-version: 3.13
 
@@ -184,7 +184,7 @@ jobs:
         python-version: ['3.10', '3.11', '3.11.1', '3.12', '3.13', '3.14-dev', 'pypy-3.10', 'pypy-3.11']
     steps:
       - uses: actions/checkout@v5
-      - uses: actions/setup-python@v5
+      - uses: actions/setup-python@v6
         with:
           python-version: ${{ matrix.python-version }}
           cache: 'pip'

.github/workflows/pypi-publish.yaml

@@ -17,7 +17,7 @@ jobs:
     steps:
       - uses: actions/checkout@v5
       - name: install python
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v6
         with:
           python-version: 3.9
       - name: Install dev tools