[VL] Minor improvements for CI stale bot (#3888)

Disable auto-close on issues.
Note user to feel free to reopen.

.github/workflows/stale.yml

@@ -24,8 +24,12 @@ jobs:
     steps:
       - uses: actions/stale@v8
         with:
-          stale-pr-message: 'This PR is stale because it has been open 45 days with no activity. Remove stale label or comment or this will be closed in 10 days.'
-          close-pr-message: 'This PR was closed because it has been stalled for 10 days with no activity.'
           days-before-pr-stale: 45
           days-before-pr-close: 10
+          stale-pr-message: 'This PR is stale because it has been open 45 days with no activity. Remove stale label or comment or this will be closed in 10 days.'
+          close-pr-message: 'This PR was auto-closed because it has been stalled for 10 days with no activity. Please feel free to reopen if it's still valid. Thanks.'
+          days-before-issue-stale: -1 # disabled
+          days-before-issue-close: -1 # disabled
+          stale-issue-message: 'This issue is stale because it has been open 45 days with no activity. Remove stale label or comment or this will be closed in 10 days.'
+          close-issue-message: 'This issue was auto-closed because it has been stalled for 10 days with no activity. Please feel free to reopen if it's still valid. Thanks.'
           operations-per-run: 300