Flaky: TestLocalSDKServerPlayerCapacity (#1451)
Flaky: TestLocalSDKServerPlayerCapacity (#1451)

Go routine could fire after we run the method that fires
the watched event, so let's wait until we know watching is
actively working.
googleforgames/agones,googleforgames/agones,googleforgames/agones,googleforgames/agones,googleforgames/agones,googleforgames/agones,googleforgames/agones,googleforgames/agones