use the proper container (🤦)

.forgejo/workflows/lint.yaml

@@ -3,20 +3,13 @@ on: [push]
 jobs:
   Docker Compose Linter:
     runs-on: docker
-    strategy:
-      matrix:
-        python-version: ["3.10"]
+    container: catthehacker/ubuntu:act-latest
     steps:
       - name: Checkout Repository
         uses: actions/checkout@v3
 
-      - name: Setup Python
-        uses: actions/setup-python@v4
-        with:
-         python-version: ${{ matrix.python-version }}
-
       - name: Install Linter
-        run: pip install yamllint
+        run: apt-get install yamllint
 
       - name: Lint YAML
         id: yaml-lint