build: use ./gradlew build

Author: linyimin0812

.github/workflows/codecov.yml

@@ -26,7 +26,7 @@ jobs:
       - name: Install dependencies, run tests, and collect coverage
         env:
           CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
-        run: gradle build
+        run: ./gradlew build
       - name: Upload coverage to Codecov
         uses: codecov/codecov-action@v3
         with: