upload to code coverage only on push event

Author: carloscarucce

.github/workflows/php.yml

@@ -39,7 +39,7 @@ jobs:
         run: composer run-script test && composer run-script check-coverage
 
       - name: Upload coverage reports to Codecov
-        if: github.event_name == 'push'
+        if: ${{ github.event_name == 'push' }}
         uses: codecov/codecov-action@v4.0.1
         with:
           token: ${{ secrets.CODECOV_TOKEN }}