remove keepalive

Author: jiacai2050

.github/workflows/fetch.yml

@@ -20,15 +20,6 @@ env:
   GITHUB_TOKEN: "${{ secrets.GITHUB_TOKEN }}"
 
 jobs:
-  keepalive-job:
-    name: Keepalive Workflow
-    runs-on: ubuntu-latest
-    permissions:
-      actions: write
-    steps:
-      - uses: actions/checkout@v4
-      - uses: gautamkrishnar/keepalive-workflow@v2
-
   fetch:
     timeout-minutes: 10
     runs-on: ubuntu-latest