Added extra error-format

Author: pk27734

.github/workflows/ci.yml

@@ -64,7 +64,7 @@ jobs:
               run: vendor/bin/phpunit --log-junit=reports/report-phpunit.xml --coverage-clover=reports/coverage-phpunit.xml
 
             - name: Static analysis with PHPStan
-              run: vendor/bin/phpstan analyse --error-format=json > reports/phpstan.json
+              run: vendor/bin/phpstan analyse --error-format=github --error-format=json > reports/phpstan.json
 
             - name: Static analysis with Psalm
               if: "${{ matrix.experimental == false }}"