Enable RTC by default, redo. #32985

Job	Run time
Determine Matrix	3s
Multisite Memcached / Test before	13m 49s
Multisite Default / Test current	14m 9s
Single Site Default / Test before	14m 45s
Multisite Default / Test before	15m 2s
Single Site Default / Test current	15m 5s
Multisite Memcached / Test current	14m 45s
Single Site Memcached / Test current	14m 37s
Single Site Memcached / Test before	14m 49s
Compare / Single Site Default	30s
Compare / Multisite Default	25s
Compare / Single Site Memcached	23s
Compare / Multisite Memcached	25s
Slack Notifications	0s
Failed workflow tasks	-1s
	1h 58m 46s

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