fix: openapi schema pipeline flakiness (#175)

Author: cyl3x

.github/workflows/php.yml

@@ -93,5 +93,5 @@ jobs:
           composer init:admin
           composer openapi:generate
           git update-index --refresh || printf ''
-          git diff-index "${{ github.sha }}" --quiet -- src/Resources/app/administration/src/types/openapi.d.ts || (echo "Please run 'composer openapi:generate' to update openapi.d.ts" && exit 1)
-          git diff-index "${{ github.sha }}" --quiet -- src/Resources/Schema || (echo "Please run 'composer openapi:generate' to update Resources/Schema files" && exit 1)
+          git diff "${{ github.sha }}" --exit-code -- src/Resources/app/administration/src/types/openapi.d.ts || (echo "Please run 'composer openapi:generate' to update openapi.d.ts" && exit 1)
+          git diff "${{ github.sha }}" --exit-code -- src/Resources/Schema || (echo "Please run 'composer openapi:generate' to update Resources/Schema files" && exit 1)