feat: add code cov

Signed-off-by: tony chen <tony.zq.chen@gmail.com>

Author: zhiqingchen

.github/workflows/ci.yml

@@ -30,6 +30,11 @@ jobs:
       - name: Run unit tests
         run: yarn test --maxWorkers=2 --coverage
 
+      - name: Upload coverage reports to Codecov
+        uses: codecov/codecov-action@v4.0.1
+        env:
+          CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
+
   build:
     runs-on: macos-latest
     steps: