Bump vitest from 2.1.8 to 3.0.6 #6310

Job	Run time
felles-workflow / codeql-analyse	0s
felles-workflow / Bygg, test og publiser docker image	2m 2s
felles-workflow / gar-publish	20s
felles-workflow / cdn-upload	10s
felles-workflow / bygg-app-for-playwright	1m 27s
felles-workflow / cypress (0)	13s
felles-workflow / cypress (1)	9s
felles-workflow / cypress (2)	9s
felles-workflow / lint	22s
felles-workflow / unit-test	48s
felles-workflow / cypress (3)	13s
felles-workflow / Deploy demo branch til dev-gcp	0s
felles-workflow / Deploy demo til dev-gcp	0s
felles-workflow / playwright (1, 4)	2m 32s
felles-workflow / playwright (2, 4)	2m 42s
felles-workflow / playwright (3, 4)	3m 15s
felles-workflow / playwright (4, 4)	3m 32s
felles-workflow / playwright-rapport	0s
felles-workflow / nais-deploy / Deploy til dev	0s
felles-workflow / nais-deploy / Deploy til prod	0s
	17m 54s

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