Update CI workflow with simpler syntax

.gitea/workflows/ci.yml

@@ -2,16 +2,18 @@ name: CI
 
 on:
   push:
-    branches: [main, master]
+    branches: [main]
   pull_request:
-    branches: [main, master]
+    branches: [main]
 
 jobs:
   test:
     runs-on: ubuntu-latest
+    timeout-minutes: 10
 
     steps:
-      - uses: actions/checkout@v4
+      - name: Checkout code
+        uses: actions/checkout@v4
 
       - name: Set up Python
         uses: actions/setup-python@v5
@@ -24,15 +26,7 @@ jobs:
           pip install -e ".[dev]"
 
       - name: Run tests
-        run: |
-          python -m pytest tests/ -v --tb=short
-          EXIT_CODE=$?
-          if [ $EXIT_CODE -ne 0 ]; then
-            echo "Tests failed with exit code $EXIT_CODE"
-            exit $EXIT_CODE
-          fi
+        run: python -m pytest tests/ -v --tb=short
 
-      - name: Run linting
-        run: |
-          pip install ruff
-          ruff check src/confgen/ tests/
+      - name: Run ruff linting
+        run: pip install ruff && ruff check src/confgen/ tests/