Add 'permissions: {}' to all workflows

Author: hugovk

.github/workflows/stale.yml

@@ -4,15 +4,15 @@ on:
   schedule:
   - cron: "0 0 * * *"
 
-permissions:
-  pull-requests: write
-
 permissions: {}
 
 jobs:
   stale:
-
+    if: github.repository_owner == 'python'
     runs-on: ubuntu-latest
+    permissions:
+      pull-requests: write
+    timeout-minutes: 10
 
     steps:
     - name: "Check PRs"