Update stale-bot

.github/workflows/stale-bot

@@ -10,8 +10,14 @@ jobs:
     steps:
       - uses: actions/stale@v3
         with:
-          stale-issue-message: 'We are clearing up our old issues and your ticket has been open for 6 months with no activity. Remove stale label or comment or this will be closed in 15 days.'
+          stale-issue-message: 'We are clearing up our old issues and your ticket has been open for 6 months with no activity. Remove stale label or comment or this will be closed in 7 days.'
+          stale-pr-message: ''We are clearing up our old Pull Requests and yours has been open for 6 months with no activity. Remove stale label or comment or this will be closed in 7 days.'
+          close-issue-message: 'This issue was closed because it has been stalled for 7 days with no activity.'
+          close-pr-message: 'This PR was closed because it has been stalled for 7 days with no activity.'
           days-before-stale: 180
-          days-before-close: 15
+          days-before-close: 7
           exempt-issue-labels: 'News,Medium,High,discussion,bug,doc,'
+          exempt-pr-labels: 'awaiting-approval,work-in-progress,enhancement,'
           operations-per-run: 500
+          exempt-issue-assignees: 'louislam'
+          exempt-pr-assignees: 'louislam'