ci: increase closed issue lock for inactivity to 7 days

Author: denolfe

.github/workflows/lock-issues.yml

@@ -17,7 +17,7 @@ jobs:
         uses: dessant/lock-threads@v5
         with:
           process-only: 'issues'
-          issue-inactive-days: '1'
+          issue-inactive-days: '7'
           exclude-any-issue-labels: 'status: awaiting-reply'
           log-output: true
           issue-comment: >