CI/CD

Update prettier and fix lint #1757

Job	Run time
Test addon (floating dependencies) (ember)	1m 53s
Lint files	49s
Test addon (locked dependencies) (ember)	1m 19s
Test addon (floating dependencies) (node)	1m 20s
Test compatibility (ember-lts-4.4)	2m 26s
Test addon (locked dependencies) (node)	49s
Test addon (floating dependencies) (test-apps)	1m 42s
Test addon (locked dependencies) (test-apps)	1m 18s
Test compatibility (ember-lts-4.8)	2m 29s
Test compatibility (ember-lts-5.4)	2m 35s
Test compatibility (ember-release)	2m 29s
Test compatibility (ember-beta)	2m 31s
Test compatibility (ember-canary)	2m 44s
Test compatibility (embroider-safe)	2m 38s
Deploy app	0s
	27m 2s

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