chore(deps): update dependency @sanity/pkg-utils to ^6.12.0 #3397

Job	Run time
build	1m 15s
Run Studio End-to-end tests / prepare	1m 3s
Run Studio End-to-end tests / cache-cli	4m 52s
ESLint	43s
Node.js lts/* / ubuntu-latest	3m 19s
Node.js lts/* / macos-latest	3m 12s
Semantic release	25s
Run Studio End-to-end tests / install (chromium)	3m 37s
Run Studio End-to-end tests / install (firefox)	3m 39s
Run Studio End-to-end tests / playwright-test (chromium, 1, 2)	3m 16s
Run Studio End-to-end tests / playwright-test (chromium, 2, 2)	4m 56s
Run Studio End-to-end tests / playwright-test (firefox, 1, 2)	3m 21s
Run Studio End-to-end tests / playwright-test (firefox, 2, 2)	5m 34s
Run Studio End-to-end tests / merge-reports	46s
Run Studio End-to-end tests / Cleanup (chromium)	6s
Run Studio End-to-end tests / Cleanup (firefox)	6s
	40m 10s

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