Use simpler variable names for Gitea Actions

.gitea/workflows/ci.yml

@@ -6,13 +6,10 @@ jobs:
   test:
     runs-on: ubuntu-latest
     steps:
-      - name: Checkout
+      - name: Checkout repository
         run: |
-          git clone https://gitea.com/${{ github.repository }} ${{ github.workspace }}
+          git clone https://gitea.com/$GITEA_REPO_NAME . 2>/dev/null || git clone https://gitea.com/${{ github.repository }} .
-          cd ${{ github.workspace }}
+      - name: Install and test
-          git checkout ${{ github.sha }}
-      - name: Run tests
         run: |
-          cd ${{ github.workspace }}
+          pip install -e . pytest
-          pip3 install -e . pytest 2>/dev/null || pip install -e . pytest
+          pytest tests/ -v
-          python3 -m pytest tests/ -v 2>/dev/null || python -m pytest tests/ -v