Bump cross-spawn from 7.0.3 to 7.0.6 #1652

Job	Run time
JS API \| Pure JS \| Browser	1m 21s
Language \| Dart Sass \| Dart stable	1m 7s
JS API \| Embedded \| Node lts/* \| ubuntu-latest	5m 3s
JS API \| Pure JS \| Node lts/* \| ubuntu-latest	1m 20s
Language \| Dart Sass \| Dart dev	1m 7s
JS API \| Embedded \| Node lts/* \| windows-latest	6m 23s
Lint spec files	14s
JS API \| Pure JS \| Node lts/* \| windows-latest	4m 15s
JS API \| Embedded \| Node lts/* \| macos-latest	4m 24s
JS API \| Pure JS \| Node lts/* \| macos-latest	1m 33s
JS API \| Embedded \| Node lts/-1 \| ubuntu-latest	4m 48s
Static analysis	22s
Unit tests	36s
JS API \| Pure JS \| Node lts/-1 \| ubuntu-latest	1m 15s
JS API \| Embedded \| Node lts/-2 \| ubuntu-latest	5m 3s
JS API \| Pure JS \| Node lts/-2 \| ubuntu-latest	1m 16s
JS API \| Embedded \| Node lts/-3 \| ubuntu-latest	5m 10s
JS API \| Pure JS \| Node lts/-3 \| ubuntu-latest	1m 30s
	46m 47s

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