Fix the runner list format in the workflow file

Author: ShreckYe

.github/workflows/ci.yml

@@ -9,7 +9,7 @@ on:
 jobs:
   check:
 
-    runs-on: ubuntu-latest, macos-latest, windows-latest
+    runs-on: [ubuntu-latest, macos-latest, windows-latest]
     permissions:
       contents: read