chore(deps): update dependency eslint-plugin-qunit to v8 #2092

Job	Run time
Tests (Floating Dependencies)	1m 18s
Lint Addon	38s
Lint Test App	23s
Tests (ember-4.0, false)	1m 22s
Tests (ember-lts-4.4, false)	1m 17s
Tests (ember-lts-4.8, false)	1m 11s
Tests (ember-4.12, false)	1m 28s
Tests (ember-default, false)	1m 16s
Tests (ember-release, false)	1m 28s
Tests (embroider-safe, false)	1m 22s
Tests (embroider-optimized, false)	1m 12s
Tests (ember-canary, true)	1m 27s
Tests (ember-beta, true)	1m 20s
	15m 42s

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