Bump lock-threads action

Author: tvdijen

.github/workflows/autolock-conversations.yml

@@ -18,7 +18,7 @@ jobs:
   action:
     runs-on: ubuntu-latest
     steps:
-      - uses: dessant/lock-threads@v4
+      - uses: dessant/lock-threads@v5
         with:
           issue-inactive-days: '90'
           pr-inactive-days: '90'