[tool] feat(ci): add codecov (#194)

Author: jabesq

.github/workflows/coverage.yml

@@ -15,22 +15,31 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
-      - name: Set up Python
-        uses: actions/setup-python@v5
+      - name: Setup uv
+        uses: astral-sh/setup-uv@v8.0.0
         with:
           python-version: "3.12"
 
       - name: Install dependencies
         run: |
-          python -m pip install --upgrade pip
-          python -m pip install -e '.[dev]' coverage
+          uv venv && uv pip install -e '.[dev]' coverage
 
       - name: Run tests with coverage
-        run: python -m coverage run -m unittest
+        run: uv run coverage run -m unittest
 
       - name: Print coverage summary
-        run: python -m coverage report -m --fail-under=70
-
-
+        run: uv run coverage report -m --fail-under=70
+
+      - name: Generate coverage XML
+        run: uv run coverage xml -o coverage.xml
+      
+      - name: Upload coverage to Codecov
+        if: ${{ !cancelled() && hashFiles('coverage.xml') != '' }}
+        uses: codecov/codecov-action@v5
+        with:
+          token: ${{ secrets.CODECOV_TOKEN }}
+          flags: connectors
+          fail_ci_if_error: false
+          verbose: true