Bump dessant/lock-threads from 3 to 4 (#4150)

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/lock.yml

@@ -18,7 +18,7 @@ jobs:
   lock:
     runs-on: ubuntu-latest
     steps:
-      - uses: dessant/lock-threads@v3
+      - uses: dessant/lock-threads@v4
         with:
           pr-inactive-days: "1"
           pr-lock-reason: ""