Update lock-threads v2.0.3

.github/workflows/lock.yml

@@ -8,7 +8,7 @@ jobs:
   lock:
     runs-on: ubuntu-latest
     steps:
-      - uses: dessant/lock-threads@v2
+      - uses: dessant/lock-threads@v2.0.3
         with:
           github-token: ${{ secrets.GITHUB_TOKEN }}
           issue-lock-comment: >