Codecov integration

Author: lloc

.github/workflows/test.yml

@@ -12,7 +12,8 @@ jobs:
         run: vendor/bin/phpunit
   code-coverages:
     runs-on: ubuntu-latest
-    needs: unit-test
+    needs: unit-tests
+    if: github.ref == 'refs/heads/master'
     steps:
       - name: Checkout project
         uses: actions/checkout@v1
@@ -24,4 +25,4 @@ jobs:
         uses: codecov/codecov-action@v4.0.1
         with:
           token: ${{ secrets.CODECOV_TOKEN }}
-          file: coverage.xml
+          file: coverage.xml