Update stale.yml

Author: natemcmaster

.github/workflows/stale.yml

@@ -13,13 +13,14 @@ jobs:
   stale:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/stale@v4
+      - uses: actions/stale@v5
         with:
           debug-only: ${{ github.event.inputs.debug-only == 'true' }}
           days-before-stale: 365
           days-before-close: 14
           stale-issue-label: stale
           close-issue-label: closed-stale
+          close-issue-reason: not_planned
           exempt-issue-labels: announcement,planning
           exempt-all-milestones: true
           exempt-all-assignees: true