Update stale.yml

Author: chryzcode

.github/workflows/stale.yml

@@ -12,3 +12,11 @@ jobs:
           repo-token: ${{ secrets.GITHUB_TOKEN }}
           stale-issue-label: 'stale'
           stale-pr-label: 'stale'
+          stale-issue-message: 'This issue is stale because it has been open 20 days with no activity. Remove stale label or comment or this will be closed in 10 days.'
+          stale-pr-message: 'This PR is stale because it has been open 20 days with no activity. Remove stale label or comment or this will be closed in 20 days.'
+          close-issue-message: 'This issue was closed because it has been stalled for 15 days with no activity.'
+          close-pr-message: 'This PR was closed because it has been stalled for 15 days with no activity.'
+          days-before-issue-stale: 20
+          days-before-pr-stale: 20 
+          days-before-issue-close: 15
+          days-before-pr-close: 15