Adds support for simple Ability versioning #29356

Job	Run time
Determine Matrix	4s
Multisite Default / Test before	12m 58s
Single Site Default / Test current	12m 11s
Multisite Memcached / Test current	12m 56s
Single Site Default / Test before	12m 38s
Single Site Memcached / Test before	12m 50s
Multisite Memcached / Test before	13m 3s
Single Site Memcached / Test current	13m 0s
Multisite Default / Test current	12m 59s
Compare / Single Site Memcached	17s
Compare / Single Site Default	13s
Compare / Multisite Default	24s
Compare / Multisite Memcached	15s
Slack Notifications	0s
Failed workflow tasks	0s
	1h 43m 48s

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