Update devDependencies (major) - autoclosed #1167

Job	Run time
Lints	54s
Test ember-scoped-css	1m 0s
Test test-apps/classic-app	1m 41s
Test test-apps/embroider-app	1m 13s
Test test-apps/pods-embroider-app	1m 7s
Test test-apps/pods-classic-app	1m 11s
ember-lts-4.4	2m 2s
Floating ember-scoped-css	1m 1s
ember-lts-4.12	1m 56s
Floating test-apps/classic-app	1m 43s
ember-lts-5.4	1m 56s
Floating test-apps/embroider-app	1m 10s
ember-lts-5.8	1m 56s
Floating test-apps/pods-embroider-app	1m 18s
Floating test-apps/pods-classic-app	1m 9s
ember-release	2m 7s
ember-beta	1m 55s
	25m 19s

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