Use native ember types #836

Job	Run time
Tests: Type Check	11s
Slow tests: defaults with npm	1m 52s
Lint JS	20s
Slow tests: defaults with yarn	1m 18s
Tests (addon-location)	50s
Slow tests: typescript with npm	2m 40s
Slow tests: defaults with pnpm	1m 8s
Tests (test-app-location)	1m 7s
Slow tests: typescript with yarn	1m 40s
Tests (addon-only)	23s
Slow tests: typescript with pnpm	51s
Tests (monorepo with npm)	1m 39s
Tests (monorepo with yarn)	1m 2s
Tests (monorepo with pnpm)	39s
Tests (rollup-build)	56s
Tests (declarations-configuration)	29s
	17m 5s

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