Minimal CI workflow without actions

.gitea/workflows/ci.yml

@@ -1,20 +1,19 @@
 name: CI
-
 on: [push, pull_request]
 
 jobs:
   test:
     runs-on: ubuntu-latest
-    container: python:3.11-slim
     steps:
-      - name: Checkout code
-        uses: actions/checkout@v4
+      - name: Setup Python
+        run: |
+          python3 -m pip install --upgrade pip
+          python3 --version
 
       - name: Install dependencies
         run: |
-          pip install --upgrade pip
-          pip install -r requirements.txt
-          pip install pytest
+          pip3 install -r requirements.txt
+          pip3 install pytest
 
       - name: Run tests
-        run: pytest tests/ -v
+        run: pytest3 tests/ -v