Move the push token error in the service #2521

Job	Run time
examples (examples/booking_app)	2m 28s
cli_packages (packages/rx_bloc_cli)	2m 34s
examples (examples/counter)	1m 51s
examples (examples/division)	1m 40s
flutter_packages (packages/rx_bloc_list)	3m 20s
packages (packages/rx_bloc)	1m 57s
examples (examples/favorites_advanced/rx_bloc_favorites_advanced)	2m 4s
flutter_packages (packages/flutter_rx_bloc)	3m 11s
examples (examples/todoapp)	3m 4s
packages (packages/rx_bloc_test)	2m 28s
packages (packages/rx_bloc_generator)	3m 28s
build	1s
	28m 6s

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