util: add hex colors support in `styleText` #3470

Job	Run time
Build slim tarball	2m 40s
x86_64-darwin: with shared libraries	2h 43m 25s
aarch64-darwin: with shared libraries	1h 6m 40s
aarch64-linux: with shared libraries	37m 0s
x86_64-linux: with shared libraries	49m 36s
	5h 19m 21s

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