fix: use minimal CI with only pytest

.gitea/workflows/ci.yml

@@ -1,27 +1,20 @@
 name: CI
 
-on:
-  push:
-    branches: [main]
-  pull_request:
-    branches: [main]
+on: [push, pull_request]
 
 jobs:
   test:
     runs-on: ubuntu-latest
     steps:
-      - run: |
-          git clone --depth 1 https://github.com/${{ gitea.repository }}.git .
-          git fetch origin 'refs/heads/main':refs/heads/main
-
+      - name: Checkout
+        uses: actions/checkout@v3
       - name: Setup Python
+        uses: actions/setup-python@v4
+        with:
+          python-version: '3.10'
+      - name: Install
         run: |
-          apt-get update && apt-get install -y python3 python3-pip
-
-      - name: Install dependencies
-        run: |
-          pip3 install -e .
-          pip3 install pytest pytest-cov
-
-      - name: Run tests
-        run: pytest confsync/tests/ -v --tb=short
+          pip install -e .
+          pip install pytest
+      - name: Test
+        run: pytest confsync/tests/ -v