Warm up emulator before ui tests start

[wooj-stripe]

Summary

Warm up emulator before ui tests start. Reached out to support, and using their suggestion to warm up the emulator prior to running UI tests.

Motivation

Intermittently seeing:

Failed to establish communication with the test runner. (Underlying Error: Error retrieving daemon unix domain socket from simulator, failed after 30 attempts.; getenv error: Error Domain=com.apple.CoreSimulator.SimError Code=405 "Unable to getenv("TESTMANAGERD_SIM_SOCK") while not booting or booted.  Current state: Shutdown" UserInfo={NSLocalizedDescription=Unable to getenv("TESTMANAGERD_SIM_SOCK") while not booting or booted.  Current state: Shutdown})

Testing

Running through CI

Changelog