Updated development dependencies (#246) #1026

Job	Run time
Build (docs-app)	47s
Test (packages/ember-container-query)	28s
Lint (docs-app)	36s
Test (test-app)	51s
Lint (packages/ember-container-query)	30s
Test compatibility (ember-lts-4.4)	50s
Lint (test-app)	29s
Test compatibility (ember-lts-4.8)	1m 3s
Test compatibility (ember-lts-4.12)	50s
Test compatibility (ember-lts-5.4)	50s
Test compatibility (ember-lts-5.8)	1m 4s
Test compatibility (ember-release)	51s
Test compatibility (ember-beta)	57s
Test compatibility (ember-canary)	49s
Test compatibility (embroider-safe)	54s
Test compatibility (embroider-optimized)	59s
Test (docs-app) (w1-h1)	51s
Test (docs-app) (w2-h1)	1m 1s
Test (docs-app) (w3-h1)	58s
Test (docs-app) (w1-h2)	52s
Test (docs-app) (w2-h2)	1m 2s
Test (docs-app) (w3-h2)	52s
Test (docs-app) (w1-h3)	1m 1s
Test (docs-app) (w2-h3)	1m 1s
Test (docs-app) (w3-h3)	1m 10s
	21m 36s

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