Setup python and make

.forgejo/workflows/check.yml

@@ -1,5 +1,8 @@
 name: Run checks
-on: [ push, pull_request ]
+on: 
+  pull_request:
+    branches:
+      - main
 jobs:
   checks:
     runs-on: docker
@@ -7,8 +10,8 @@ jobs:
       DIRECTORY: config
     steps:
       - uses: actions/checkout@v4
-      - run: cd ${{ env.DIRECTORY }}
-      - run: pip install -r requirements-dev.txt
-      - run: ruff check
-      - run: ruff format
-      - run: myp
+      - uses: actions/setup-python@v5
+        with:
+          python-version: '3.12.6'
+      - run: pip install -r requirements.txt
+      - run: make check