Update stale.yml

Shorten the PR staleness from 6 months to 3 weeks + 1 week notice. PRs become much harder to deal with the old they become due to merge conflicts and divergence.

Updated to stale@v7.0.0

.github/workflows/stale.yml

@@ -1,5 +1,7 @@
 name: Mark stale issues and pull requests
-permissions: read-all
+permissions:
+  issues: write
+  pull-requests: write
 
 on:
   schedule:
@@ -11,14 +13,23 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/stale@v4.0.0
+    - uses: actions/stale@v7.0.0
       with:
         repo-token: ${{ secrets.GITHUB_TOKEN }}
-        stale-pr-message: 'This pull request is stale because it has been open 6 months with no activity. Please comment or this will be closed in 14 days.'
+        operations-per-run: 50  
-        stale-issue-message: 'This issue is stale because it has been open 6 months with no activity. Please comment or this will be closed in 14 days.'
-        days-before-stale: 182 # 6 months
-        days-before-close: 14
-        operations-per-run: 1500
-        exempt-issue-labels: not-stale
-        exempt-pr-labels: not-stale
         exempt-all-milestones: true
+        remove-stale-when-updated: true
+      
+        stale-issue-message: 'This issue is stale because it has been open 6 months with no activity. Please comment or label `not-stale`, or this will be closed in 14 days.'
+        close-issue-message: 'This issue was automatically closed due to no activity for 6 months plus the 14 day notice period.'
+        days-before-issue-stale: 182 # 6 months
+        days-before-issue-close: 14 # 2 weeks
+        exempt-issue-labels: not-stale
+        
+        stale-pr-message: 'This pull request is stale because it has been open 3 weeks with no activity. Please comment or label `not-stale`, or this will be closed in 7 days.'
+        close-pr-message: 'This pull request was automatically closed due to no activity for 3 weeks plus the 7 day notice period.'
+        days-before-pr-stale: 21 # 3 weeks
+        days-before-pr-close: 7 # 1 week
+        exempt-pr-labels: not-stale
+        exempt-draft-pr: false
+