fix

Author: danylo-safonov-solid

.github/workflows/on-pr-push-code-check.yml

@@ -15,9 +15,7 @@ jobs:
         id: check_files
         uses: andstor/file-existence-action@v1
         with:
-          files:
-            - 'pubspec.yaml'
-            - 'tools/add_imports/pubspec.yaml'
+          files: 'pubspec.yaml, tools/add_imports/pubspec.yaml'
 
       - name: Early exit
         if: steps.check_files.outputs.files_exists == 'false'