CI: CodeQL complains about deprecated setup.py install

SetuptoolsDeprecationWarning: setup.py install is deprecated. Use build
and pip and other standards-based tools.

It also refers to:

  /usr/local/lib/python3.10/dist-packages/

=> Maybe explicitly installing Python 3.11 helps already?

.github/workflows/codeql.yml

@@ -33,9 +33,18 @@ jobs:
         sqla-version: ['<1.4', '<1.5', '<2.1']
 
     steps:
-      - name: Checkout
+      - name: Acquire sources
         uses: actions/checkout@v4
 
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: 3.11
+          architecture: x64
+          cache: 'pip'
+          cache-dependency-path:
+            pyproject.toml
+
       - name: Initialize CodeQL
         uses: github/codeql-action/init@v2
         with: