ci: move to latest lock-closed commit for github action

Author: josephperrott

.github/workflows/lock-closed.yml

@@ -9,7 +9,7 @@ jobs:
  lock_closed:
  runs-on: ubuntu-latest
  steps:
- - uses: angular/dev-infra/github-actions/lock-closed@1e03b0d
+ - uses: angular/dev-infra/github-actions/lock-closed@7f7ef07
  with:
  lock-bot-key: ${{ secrets.LOCK_BOT_PRIVATE_KEY }}
- locks-per-execution: 250
+ locks-per-execution: 100