fix: use gitea runner with explicit exit codes

.gitea/workflows/ci.yml

@@ -1,21 +1,32 @@
 name: CI
 
-on: [push, pull_request]
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - main
 
 jobs:
-  test:
-    runs-on: ubuntu-latest
+  ci:
+    runs-on: gitea
     steps:
-      - run: |
-          git clone --depth 1 https://${{ gitea.server }}/${{ gitea.repository }} .
-          git fetch --depth=1 origin ${{ gitea.sha }}
+      - name: Checkout
+        run: |
+          git clone https://${{ gitea.server }}/${{ gitea.repository }} .
           git checkout ${{ gitea.sha }}
 
-      - run: |
+      - name: Install Python deps
+        run: |
           python3 -m pip install --upgrade pip
-          python3 -m pip install pytest ruff
-          python3 -m pip install -e ".[dev]"
+          python3 -m pip install pytest ruff -q
+          python3 -m pip install -e ".[dev]" -q
 
-      - run: python3 -m pytest tests/ -v --tb=short
+      - name: Test
+        run: |
+          python3 -m pytest tests/ -v --tb=short || exit 1
 
-      - run: python3 -m ruff check i18n_key_sync/ tests/
+      - name: Lint
+        run: |
+          python3 -m ruff check i18n_key_sync/ tests/ || exit 1