Limit the number of parallel requests when polling release tests with app distribution #9437
Description
[REQUIRED] Environment info
firebase-tools: 14.22.0
Platform: macOS
With the appdistribution:distribute CLI command and the apptesting_run_test tool, when creating release tests we make the request all the release tests in parallel. We should consider limiting this.
Context: https://github.com/firebase/firebase-tools/pull/9409/files#r2487579244