get_block_wrapper_attributes: Ensures that user-provided attributes override the attributes generated by block supports #33286

Job	Run time
Determine Matrix	5s
Single Site Default / Test before	1m 32s
Multisite Memcached / Test current	1m 29s
Single Site Memcached / Test before	1m 26s
Multisite Memcached / Test before	1m 28s
Single Site Default / Test current	1m 31s
Multisite Default / Test current	1m 30s
Single Site Memcached / Test current	1m 18s
Multisite Default / Test before	1m 30s
matrix.label	0s
Slack Notifications	-1s
Failed workflow tasks	1s
	11m 49s

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