Merge pull request #208 from rundeck-plugins/renovate/actions-setup-python-6.x

Update actions/setup-python action to v6

Author: fdevans

.github/workflows/tests.yml

@@ -14,7 +14,7 @@ jobs:
     steps:
     - uses: actions/checkout@v7
     - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v5
+      uses: actions/setup-python@v6
       with:
         python-version: ${{ matrix.python-version }}
         architecture: x64