Update color tests for new improved LMS matrices #1608

Job	Run time
Language \| Dart Sass \| Dart ${{ matrix.dart_channel }}	0s
JS API \| Pure JS \| Node ${{ matrix.node_version }} \| ${{ matrix.os }}	0s
JS API \| Embedded \| Node lts/* \| ubuntu-latest	4m 52s
JS API \| Pure JS \| Browser	0s
JS API \| Embedded \| Node lts/* \| windows-latest	6m 51s
Lint spec files	22s
Static analysis	18s
JS API \| Embedded \| Node lts/* \| macos-latest	3m 36s
Unit tests	42s
JS API \| Embedded \| Node lts/-1 \| ubuntu-latest	5m 10s
JS API \| Embedded \| Node lts/-2 \| ubuntu-latest	5m 7s
JS API \| Embedded \| Node lts/-3 \| ubuntu-latest	1m 43s
	28m 41s

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