Fix CI issues: add workflow file and fix lint errors

.gitea/workflows/ci.yml

@@ -9,20 +9,26 @@ on:
 jobs:
   test:
     runs-on: ubuntu-latest
+    
     steps:
       - uses: actions/checkout@v4
       
-      - uses: actions/setup-python@v5
+      - name: Set up Python
+        uses: actions/setup-python@v5
         with:
           python-version: '3.11'
           
       - name: Install dependencies
         run: |
           python -m pip install --upgrade pip
-          pip install -e ".[dev]"
+          pip install click>=8.0 requests>=2.28 pyyaml>=6.0
+          pip install pytest pytest-cov
           
       - name: Run tests
-        run: pytest tests/ -v
+        run: |
+          python -m pytest tests/ -v
           
-      - name: Check code style (ruff)
-        run: pip install ruff && ruff check .
+      - name: Check linting
+        run: |
+          pip install ruff
+          python -m ruff check .