Fix XDebug setting again

Author: tPl0ch

.github/workflows/checks.yml

@@ -152,7 +152,7 @@ jobs:
           mkdir -p build
           docker run -i --rm --net=host --sig-proxy=true --pid=host \
             -v "${GITHUB_WORKSPACE}":"${GITHUB_WORKSPACE}" -w "${GITHUB_WORKSPACE}" schema-registry-client:${{ matrix.php.version }} \
-            XDEBUG_MODE=coverage vendor/bin/phpunit --exclude-group integration --coverage-clover=build/coverage.clover --coverage-text
+            -d xdebug.mode=coverage 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' && github.event_name == 'push' && github.ref == 'refs/heads/master' }}
         uses: paambaati/codeclimate-action@v3.0.0