Update specs for @import/global builtins deprecations #1539

Job	Run time
Static analysis	14s
Unit tests	40s
Lint spec files	19s
Language \| Dart Sass \| Dart ${{ matrix.dart_channel }}	0s
JS API \| Pure JS \| Node ${{ matrix.node_version }} \| ${{ matrix.os }}	0s
JS API \| Pure JS \| Browser	0s
JS API \| Embedded \| Node lts/* \| ubuntu-latest	1m 29s
JS API \| Embedded \| Node lts/* \| windows-latest	3m 20s
JS API \| Embedded \| Node lts/* \| macos-latest	1m 55s
JS API \| Embedded \| Node lts/-1 \| ubuntu-latest	1m 30s
JS API \| Embedded \| Node lts/-2 \| ubuntu-latest	1m 28s
JS API \| Embedded \| Node lts/-3 \| ubuntu-latest	1m 35s
	12m 30s

Provide feedback