fix(ci): remove py_compile from pip install — it's stdlib, not a package (#461)

.gitea/workflows/validate-config.yaml

@@ -49,7 +49,7 @@ jobs:
           python-version: '3.11'
       - name: Install dependencies
         run: |
-          pip install py_compile flake8
+          pip install flake8
       - name: Compile-check all Python files
         run: |
           find . -name '*.py' -print0 | while IFS= read -r -d '' f; do