add ember to ecosystem tests

Author: mansona

tests/ember.ts

@@ -0,0 +1,12 @@
+import { runInRepo } from '../utils.ts'
+import type { RunOptions } from '../types.d.ts'
+
+export async function test(options: RunOptions) {
+	await runInRepo({
+		...options,
+		repo: 'embroider-build/embroider',
+		branch: 'main',
+		build: 'compile',
+		test: 'test',
+	})
+}