Update dessant/lock-threads action to v3

Author: renovate-bot

.github/workflows/lock-closed-issues.yml

@@ -8,7 +8,7 @@ jobs:
   lock:
     runs-on: ubuntu-latest
     steps:
-      - uses: dessant/lock-threads@v2
+      - uses: dessant/lock-threads@v3
         with:
           github-token: ${{ github.token }}
           issue-lock-inactive-days: '31'