fix

Author: brother-jin

.github/workflows/clean-cache.yml

@@ -4,6 +4,10 @@ on:
     types:
       - closed
 
+permissions:
+  actions: write
+  contents: read
+
 jobs:
   cleanup:
     runs-on: ubuntu-latest
@@ -18,4 +22,4 @@ jobs:
         env:
           GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
           REPO: ${{ github.repository }}
-          BRANCH: refs/pull/${{ github.event.pull_request.number }}/merge
+          BRANCH: refs/pull/${{ github.event.pull_request.number }}/merge