build(deps): bump cross-spawn from 6.0.5 to 6.0.6 #6093

Job	Run time
Build extensions	1m 3s
Test	2m 7s
ember-try (ember-lts-3.16)	1m 10s
ember-try (ember-lts-3.20)	1m 18s
ember-try (ember-lts-3.24)	1m 30s
ember-try (ember-lts-3.28)	1m 21s
ember-try (ember-lts-4.8)	1m 10s
ember-try (ember-lts-4.12)	1m 7s
ember-try (ember-release)	1m 30s
ember-try (ember-beta)	1m 22s
ember-try (ember-canary)	1m 16s
ember-try (ember-default-no-prototype-extensions)	1m 1s
Publish Chrome extension	0s
Publish npm package	0s
Publish Firefox extension	0s
Publish bookmarklet	0s
	15m 55s

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