feat: update permissions for GitHub Actions workflow

Author: IShix-g

.github/workflows/test-unity-cs-linter-dispatch.yaml

@@ -22,6 +22,9 @@ on:
         type: string
         default: ''
 
+permissions:
+  checks: write
+
 jobs:
   unity-cs-linter:
     uses: ./.github/workflows/reusable-unity-cs-linter-dispatch.yaml