Slash inactive days for issue locker by half

.github/workflows/lock.yml

@@ -11,8 +11,8 @@ jobs:
       - uses: dessant/lock-threads@v2
         with:
           github-token: ${{ github.token }}
-          issue-lock-inactive-days: '60'
-          pr-lock-inactive-days: '60'
+          issue-lock-inactive-days: '30'
+          pr-lock-inactive-days: '30'
           issue-lock-reason: 'resolved'
           pr-lock-reason: 'resolved'