chore(deps): update dependency vitepress to ^1.5.0 #2546

Job	Run time
lint:css	28s
lint:hbs	25s
lint:js	40s
lint:types	26s
test	37s
Ember Try (ember-3.28)	38s
Ember Try (ember-4.12)	47s
Ember Try (ember-5.4)	39s
Ember Try (ember-5.8)	46s
Ember Try (ember-5.12)	37s
Ember Try (ember-release)	42s
Ember Try (ember-beta)	40s
Ember Try (ember-canary)	53s
Ember Try (embroider-safe)	42s
Ember Try (embroider-optimized)	1m 0s
	10m 0s

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