chore(deps): update dependency @embroider/addon-dev to v7 #3552

Job	Run time
Lint Addon	26s
Lint Test App	29s
Tests (Floating Dependencies)	1m 5s
embroider-optimized - Allowed to fail	1m 22s
ember-beta - Allowed to fail	1m 14s
Tests (ember-4.0, false)	1m 9s
ember-canary - Allowed to fail	1m 4s
Tests (ember-lts-4.4, false)	55s
Tests (ember-lts-4.8, false)	49s
Tests (ember-4.12, false)	46s
Tests (ember-lts-5.8, false)	1m 3s
Tests (ember-default, false)	1m 10s
Tests (ember-release, false)	58s
Tests (embroider-safe, false)	1m 6s
	13m 36s

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