chore: rename delete.yml

.github/workflows/Delete.yml

@@ -1,16 +0,0 @@
-name: Delete old workflow runs
-on:
-  schedule:
-    - cron: '0 0 1 * *'
-# Run monthly, at 00:00 on the 1st day of month.
-
-jobs:
-  del_runs:
-    runs-on: ubuntu-latest
-    steps:
-      - name: Delete workflow runs
-        uses: GitRML/delete-workflow-runs@main
-        with:
-          token: ${{ secrets.AUTH_PAT }}
-          repository: ${{ github.repository }}
-          retain_days: 30

.github/workflows/delete.yml

@@ -1,8 +1,7 @@
 name: Delete old workflow runs
 on:
   schedule:
-    - cron: '0 0 1 * *'
-# Run monthly, at 00:00 on the 1st day of month.
+    - cron: "0 0 * * SUN"
 
 jobs:
   del_runs: