Alarms no longer force idle #838

Job	Run time
tests (ubuntu-latest, tests)	30s
build (ubuntu-latest, noradio)	1m 54s
tests (macos-latest, tests)	30s
build (ubuntu-latest, wifi)	2m 16s
tests (windows-latest, tests_nosan)	1m 21s
build (ubuntu-latest, bt)	2m 12s
build (macos-latest, noradio)	1m 41s
build (macos-latest, wifi)	2m 8s
build (macos-latest, bt)	1m 36s
build (windows-latest, noradio)	5m 7s
build (windows-latest, wifi)	5m 1s
build (windows-latest, bt)	5m 37s
	29m 53s

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