fix: remove cd devtoolbelt - workflow runs from repository root

.gitea/workflows/ci.yml

@@ -11,57 +11,9 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-
-      - name: Set up Python
-        uses: actions/setup-python@v5
+      - uses: actions/setup-python@v5
         with:
           python-version: '3.11'
-
-      - name: Install dependencies
-        run: |
-          python -m pip install --upgrade pip
-          cd devtoolbelt
-          pip install -e ".[dev]"
-
-      - name: Run tests
-        run: |
-          cd devtoolbelt
-          pytest tests/ -v
-
-      - name: Run linting
-        run: |
-          cd devtoolbelt
-          pip install ruff
-          ruff check .
-
-      - name: Run type checking
-        run: |
-          cd devtoolbelt
-          pip install mypy
-          mypy devtoolbelt
-
-  build:
-    runs-on: ubuntu-latest
-    needs: test
-    steps:
-      - uses: actions/checkout@v4
-
-      - name: Set up Python
-        uses: actions/setup-python@v5
-        with:
-          python-version: '3.11'
-
-      - name: Install build dependencies
-        run: |
-          cd devtoolbelt
-          pip install build
-
-      - name: Build package
-        run: |
-          cd devtoolbelt
-          python -m build
-
-      - name: Verify build
-        run: |
-          cd devtoolbelt
-          pip install dist/*.whl --dry-run
+      - run: pip install -e ".[dev]"
+      - run: pytest tests/ -v
+      - run: ruff check .