ci: fix broken GH yaml

Signed-off-by: Andrea Luzzardi <aluzzardi@gmail.com>

.github/workflows/stale.yml

@@ -1,20 +1,18 @@
 name: "Close stale PRs"
-permissions:
-  issues: write
-  pull-requests: write
 
 on:
   schedule:
     - cron: "30 1 * * *"
-  workflow_dispatch:
 
 jobs:
   stale:
     runs-on: ubuntu-latest
+    permissions:
+      issues: write
+      pull-requests: write
     steps:
       - uses: actions/stale@v4
         with:
-          debug-only: true
           stale-pr-label: stale
           stale-pr-message: "This PR is stale because it has been open 14 days with no activity. Remove stale label or comment or this will be closed in 7 days."
           close-pr-message: "This PR was closed because it has been stalled for 7 days with no activity."