Check_suite completed event never triggers workflow

I am simply trying to get the check_suite event to trigger the workflow on completed.
The check suite is being created by a GitHub App attached to the repo alongside the workflow.
I have added the workflow yaml file to the master the default branch and in the branch I am testing with a pull request. The pull request triggers the GitHub App’s check suite, but the workflow never runs.

name: End-to-End Tesing with Gradle
    types: [completed]    
    runs-on: ubuntu-latest
    - uses: actions/checkout@v2

Sorry for the delay response. I am trying to connect with engineering team to confirm the current behavior. It may need some time . Your patience will be appreciated.