Blocks/refactor post galleries block processor #29148

Job	Run time
Determine Matrix	3s
Multisite Default / Test before	12m 48s
Single Site Memcached / Test before	13m 3s
Multisite Default / Test current	12m 59s
Single Site Default / Test current	13m 11s
Multisite Memcached / Test before	12m 38s
Multisite Memcached / Test current	12m 42s
Single Site Default / Test before	12m 36s
Single Site Memcached / Test current	12m 46s
Compare / Multisite Memcached	14s
Compare / Single Site Memcached	9s
Compare / Multisite Default	15s
Compare / Single Site Default	9s
Slack Notifications	0s
Failed workflow tasks	-1s
	1h 43m 32s

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