fix: do not include legacy color variables in swatches #5064

Job	Run time
CI \| Unit	1s
Status check > Unit	1s
CI \| Visual	1s
Lint scripts / run	43s
Compile themes / run	40s
Lint styles / run (default)	1m 25s
Render test pages / verify	8s
Lint styles / run (bootstrap)	1m 23s
Lint styles / run (material)	1m 29s
Lint styles / run (classic)	1m 26s
Lint styles / run (fluent)	1m 13s
Render test pages / run	0s
Status check > A11y / prepare	1s
Create screenshots / run (default)	1m 59s
Create screenshots / run (bootstrap)	2m 14s
Create screenshots / run (material)	2m 32s
Create screenshots / run (classic)	1m 57s
Create screenshots / run (fluent)	2m 16s
Status check > Lint scripts	1s
Status check > A11y / run-checks (1)	2m 27s
Status check > A11y / run-checks (2)	2m 53s
Status check > A11y / run-checks (3)	2m 44s
Status check > A11y / run-checks (4)	2m 32s
Status check > Lint styles	1s
Detect changes	11s
Status check > Visual	1s
	30m 19s

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