Update @embroider/test-setup #987

Job	Run time
Lints	48s
Test ember-scoped-css	36s
Test test-apps/classic-app	46s
Test test-apps/embroider-app	52s
Test test-apps/pods-embroider-app	34s
Test test-apps/pods-classic-app	48s
ember-lts-4.4	57s
Floating ember-scoped-css	34s
ember-lts-4.12	54s
ember-lts-5.4	54s
Floating test-apps/classic-app	48s
ember-lts-5.8	1m 11s
Floating test-apps/embroider-app	43s
ember-release	1m 4s
Floating test-apps/pods-embroider-app	35s
ember-beta	53s
Floating test-apps/pods-classic-app	40s
	13m 37s

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