get_block_wrapper_attributes: Ensures that user-provided attributes override the attributes generated by block supports #33288

Job	Run time
Determine Matrix	3s
Single Site Default / Test before	9m 19s
Multisite Memcached / Test before	9m 19s
Single Site Default / Test current	9m 21s
Single Site Memcached / Test current	9m 21s
Single Site Memcached / Test before	9m 21s
Multisite Default / Test before	9m 20s
Multisite Memcached / Test current	9m 22s
Multisite Default / Test current	9m 20s
Slack Notifications	-1s
matrix.label	-1s
Failed workflow tasks	1s
	1h 14m 45s

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