use setup python properly

.forgejo/workflows/lint.yaml

@@ -3,12 +3,17 @@ on: [push]
 jobs:
   Docker Compose Linter:
     runs-on: docker
+    strategy:
+      matrix:
+        python-version: ["3.8"]
     steps:
       - name: Checkout Repository
         uses: actions/checkout@v3
 
       - name: Setup Python
-        uses: actions/setup-python@v3
+        uses: actions/setup-python@v4
+        with:
+         python-version: ${{ matrix.python-version }}
 
       - name: Install Linter
         run: pip install yamllint