Fix JSDoc syntax #528

Job	Run time
Lint	40s
Tests (ubuntu-latest, chrome)	1m 9s
Floating Dependencies (ubuntu-latest, chrome)	53s
Tests (ubuntu-latest, firefox)	1m 1s
Floating Dependencies (ubuntu-latest, firefox)	1m 13s
Tests - ember-lts-3.28	1m 36s
Tests - ember-lts-4.4	1m 28s
Tests - ember-lts-4.8	1m 30s
Tests - ember-lts-4.12	1m 25s
Tests - ember-5.0	1m 17s
Tests - ember-release	1m 45s
Tests - ember-default	1m 33s
Tests - tsc	34s
Tests - embroider-safe	1m 49s
Tests - embroider-optimized	1m 36s
Tests - ember-beta	1m 32s
Tests - ember-canary	2m 10s
	23m 11s

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