chore: remove stable workflow

.github/workflows/close-issue-pr.yml

@@ -1,18 +0,0 @@
-name: "Close stale issues"
-
-on:
-  schedule:
-  - cron: "30 1 * * *"
-
-jobs:
-  stale:
-    runs-on: ubuntu-latest
-    steps:
-    - uses: actions/stale@v3
-      with:
-        repo-token: ${{ secrets.GITHUB_TOKEN }}
-        stale-issue-message: 'This issue is stale because it has been open 60 days with no activity. Remove stale label or comment or this will be closed in 7 days'
-        stale-pr-message: 'This PR is stale because it has been open 60 days with no activity. Remove stale label or comment or this will be closed in 7 days'
-        days-before-stale: 60
-        days-before-close: 7
-