chore(deps): update actions/setup-python action to v6

Author: renovate[bot]

.github/workflows/ci.yaml

@@ -64,7 +64,7 @@ jobs:
       uses: actions/checkout@v4
 
     - name: Setup Python
-      uses: actions/setup-python@v5
+      uses: actions/setup-python@v6
       with:
         python-version: ${{ env.PYTHON_VERSION }}
 
@@ -97,7 +97,7 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Setup Python
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v6
         with:
           python-version: ${{ env.PYTHON_VERSION }}