add ember static source test app #6771

Job	Run time
Test	3m 43s
Build extensions	1m 15s
ember-try (ember-lts-3.24)	2m 17s
ember-try (ember-lts-3.16)	2m 3s
ember-try (ember-lts-3.20)	2m 22s
ember-try (ember-lts-5.4)	2m 28s
ember-try (ember-lts-4.8)	2m 30s
ember-try (ember-lts-4.12)	2m 32s
ember-try (ember-lts-3.28)	2m 36s
ember-try (ember-lts-5.8)	2m 32s
ember-try (ember-lts-5.12)	2m 29s
ember-try (ember-release)	2m 56s
ember-try (ember-beta)	2m 43s
ember-try (ember-default-no-prototype-extensions)	2m 5s
ember-try (ember-canary)	2m 38s
Publish Chrome extension	8s
Publish Firefox extension	27s
Publish npm package	5s
Publish bookmarklet	0s
	37m 49s

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