fix(utils): generate missing elevation classes with important flag #3391

Job	Run time
Status check > Unit	1s
CI \| Unit	1s
CI \| Visual	1s
Lint styles / run (default)	2m 18s
Lint styles / run (bootstrap)	2m 14s
Lint scripts / run	58s
Lint styles / run (material)	2m 19s
Lint styles / run (classic)	2m 18s
Compile themes / run	33s
Lint styles / run (nouvelle)	51s
Render test pages / verify	7s
Lint styles / run (fluent)	39s
Render test pages / run	0s
Status check > A11y / prepare	1s
Create screenshots / run (default)	2m 19s
Create screenshots / run (bootstrap)	2m 40s
Create screenshots / run (material)	2m 27s
Create screenshots / run (classic)	2m 23s
Create screenshots / run (nouvelle)	2m 16s
Create screenshots / run (fluent)	2m 22s
Status check > A11y / run-checks (1)	3m 0s
Status check > A11y / run-checks (2)	3m 19s
Status check > A11y / run-checks (3)	2m 50s
Status check > A11y / run-checks (4)	3m 11s
Status check > Lint scripts	1s
Status check > Lint styles	1s
Detect changes	12s
Status check > Visual	1s
	39m 23s

Provide feedback