[CI] Only publish code coverage on master push

Author: tPl0ch

.github/workflows/checks.yml

@@ -154,7 +154,7 @@ jobs:
             -v "${GITHUB_WORKSPACE}":"${GITHUB_WORKSPACE}" -w "${GITHUB_WORKSPACE}" schema-registry-client:${{ matrix.php.version }} \
             vendor/bin/phpunit --exclude-group integration --coverage-clover=build/coverage.clover --coverage-text
       - name: Publish code coverage
-        if: ${{ matrix.php.version == '7.4' && matrix.php.composer == '--prefer-stable' }}
+        if: ${{ matrix.php.version == '7.4' && matrix.php.composer == '--prefer-stable' && github.event_name == 'push' && github.ref == 'refs/heads/master' }}
         uses: paambaati/codeclimate-action@v2.7.4
         env:
           CC_TEST_REPORTER_ID: ${{secrets.CODE_CLIMATE_REPORTER_ID}}