Remove stale bot

.github/workflows/stale.yml

@@ -1,28 +0,0 @@
-name: Stale
-on:
-  schedule:
-    - cron: '35 9 * * *'
-
-permissions:
-  # contents: write # only for delete-branch option
-  issues: write
-  pull-requests: write
-
-jobs:
-  stale:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/stale@v7
-        with:
-          stale-issue-message: "This issue is stale because it has been open for 120 days with no activity."
-          close-issue-message: "This issue was closed because it has been inactive for 30 days since being marked as stale."
-          stale-issue-label: "stale"
-          operations-per-run: 60
-          exempt-all-milestones: true
-          exempt-issue-labels: 'dependencies,security'
-          exempt-all-assignees: true
-          exempt-draft-pr: true
-          days-before-issue-stale: 120
-          days-before-issue-close: 30
-          days-before-pr-stale: -1
-          days-before-pr-close: -1