fix: remove actions/checkout (blocked by GitHub in China)

.gitea/workflows/ci.yml

@@ -10,29 +10,15 @@ jobs:
   test:
     runs-on: shell
     steps:
-      - uses: actions/checkout@v4
-
       - name: Install dependencies
         run: pip install -r requirements.txt
 
-      - name: Run tests (with result capture)
-        id: pytest
-        run: |
-          python -m pytest tests/ -v
-          echo "PYTEST_EXIT=$?" >> $GITHUB_ENV
+      - name: Run tests
+        run: python -m pytest tests/ -v
 
-      - name: Report success
-        if: success()
-        run: echo "Tests passed - all good!"
-
-      - name: Report failure
-        if: failure()
-        run: echo "Tests failed! Would create issue here."
-
-      - name: Create failure issue
+      - name: Create issue on failure
         if: failure()
         run: |
-          echo "Creating issue..."
           python scripts/create_failure_issue.py \
             --sha "${{ github.sha }}" \
             --branch "${{ github.ref_name }}" \