chore(deps): update dependency vitest to v4

Author: renovate[bot]

package.json

@@ -110,7 +110,7 @@
 		"typedoc": "^0.28.2",
 		"typescript": "^5.8.3",
 		"viem": "^2.26.5",
-		"vitest": "^3.1.1"
+		"vitest": "^4.0.12"
 	},
 	"peerDependencies": {
 		"viem": ">=2"