Test against DT types as well as stable #409

Job	Run time
Lint	59s
DefinitelyTyped [email protected]	1m 49s
Stable [email protected]	1m 44s
DefinitelyTyped [email protected]	1m 44s
Stable [email protected]	1m 42s
DefinitelyTyped [email protected]	1m 42s
Stable [email protected]	1m 43s
DefinitelyTyped [email protected]	1m 44s
Stable [email protected]	1m 47s
DefinitelyTyped typescript@next	1m 43s
Stable typescript@next	1m 43s
Floating Dependencies (ubuntu-latest, chrome)	1m 0s
Tests (ubuntu-latest, chrome)	1m 0s
Floating Dependencies (ubuntu-latest, firefox)	1m 0s
Tests (ubuntu-latest, firefox)	1m 3s
Docs app	1m 3s
Tests - ember-lts-3.28	1m 57s
Tests - ember-lts-4.4	1m 58s
Tests - ember-lts-4.12	1m 58s
Tests - ember-release	1m 59s
Tests - ember-beta	1m 55s
Tests - ember-classic	1m 52s
Tests - embroider-safe	1m 59s
Tests - embroider-optimized	2m 17s
Tests - ember-canary	1m 58s
	41m 19s

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