chore(deps): update actions/setup-python action to v5

Author: renovate[bot]

.github/workflows/php-ci.yaml

@@ -37,7 +37,7 @@ jobs:
         extensions: ast, grpc
 
     - name: Setup Python
-      uses: actions/setup-python@v4
+      uses: actions/setup-python@v5
       with:
         python-version: '3.10'