Matches test runner name to beta action runner (#16821)

done via GH org level settings UI

Author: supertopher

.github/workflows/gradle.yml

@@ -568,7 +568,7 @@ jobs:
     # Because scheduled builds on master require us to skip the changes job. Use always() to force this to run on master.
     if: needs.changes.outputs.backend == 'true' || needs.changes.outputs.build == 'true' || (always() && github.ref == 'refs/heads/master')
     timeout-minutes: 10
-    runs-on: ubuntu-20.04-16core
+    runs-on: faster-better-stronger-gh-runner
     outputs:
       label: ${{ steps.start-ec2-runner.outputs.label }}
       ec2-instance-id: ${{ steps.start-ec2-runner.outputs.ec2-instance-id }}