ci(stalebot): remove stale bot (#10000)

.github/workflows/close_old_issues.yml

@@ -1,44 +0,0 @@
-name: 'Close stale issues and PRs'
-on:
-  schedule:
-    - cron: '30 1 * * *'
-  workflow_dispatch:
-
-jobs:
-  stale:
-    if: github.repository == 'lvgl/lvgl'
-    runs-on: ubuntu-24.04
-    steps:
-      - uses: actions/stale@v10
-        with:
-          repo-token: ${{ secrets.LVGL_BOT_TOKEN }}
-          stale-issue-message: |
-            We need some feedback on this issue.
-
-            Now we mark this as "Stale" because there was no activity here for 60 days.
-
-            Remove the "Stale" label or comment else this will be closed in 14 days.
-
-            cc @kisvegabor, @liamHowatt, @uLipe, @AndreCostaaa
-          stale-pr-message: |
-            We need some feedback on this pull request.
-
-            Now we mark this as "Stale" because there was no activity here for 60 days.
-
-            Remove the "Stale" label or comment else this will be closed in 14 days.
-
-            cc @kisvegabor, @liamHowatt, @uLipe, @AndreCostaaa
-          close-issue-message: |
-            As there was no activity here for a while we close this issue. But don't worry, the conversation is still here and you can get back to it at any time.
-
-            Feel free to comment if you have remarks or ideas on this topic.
-
-            cc @kisvegabor, @liamHowatt, @uLipe, @AndreCostaaa
-          days-before-stale: 60
-          days-before-close: 14
-          exempt-issue-labels: '🔥 Important'
-          exempt-pr-labels: '🔥 Important'
-          stale-issue-label: '💤 Stale'
-          stale-pr-label: '💤 Stale'
-          close-issue-label: '🪹 Abandoned'
-          close-pr-label: '🪹 Abandoned'