ci: Temporarily disable stale issue workflow

.github/workflows/stale-issues.yml

@@ -1,23 +0,0 @@
-name: citra-stale-issues
-
-on:
-  schedule:
-    - cron: "0 0 * * *"
-
-jobs:
-  stale-issues:
-    runs-on: ubuntu-latest
-    permissions:
-      issues: write
-    steps:
-      - uses: actions/stale@v9.0.0
-        with:
-          repo-token: ${{ secrets.GITHUB_TOKEN }}
-          days-before-issue-stale: 90
-          days-before-issue-close: 10
-          stale-issue-message: "This issue has been marked as stale. If there is no activity within the next 10 days, this issue will be closed."
-          close-issue-message: "This issue has been closed as stale."
-          days-before-pr-stale: -1
-          days-before-pr-close: -1
-          remove-issue-stale-when-updated: true
-          exempt-issue-labels: "priority - low,priority - medium,priority - high,priority - urgent,documentation,enhancement"