chore(deps): update dependency eslint-plugin-qunit to v8 #2229

Job	Run time
Tests (Floating Dependencies)	1m 4s
Lint Test App	22s
Lint Addon	46s
embroider-optimized - Allowed to fail	1m 16s
Tests (ember-4.0, false)	1m 15s
ember-beta - Allowed to fail	2m 2s
Tests (ember-lts-4.4, false)	1m 19s
ember-canary - Allowed to fail	1m 30s
Tests (ember-lts-4.8, false)	1m 19s
Tests (ember-4.12, false)	1m 15s
Tests (ember-default, false)	1m 16s
Tests (ember-release, false)	1m 35s
Tests (embroider-safe, false)	1m 8s
	16m 7s

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