chore(deps): update dependency vitest to v4

Author: renovate[bot]

package.json

@@ -61,7 +61,7 @@
 		"sentences-per-line": "^0.3.0",
 		"typescript": "^5.8.3",
 		"typescript-eslint": "^8.38.0",
-		"vitest": "^3.2.4"
+		"vitest": "^4.0.0"
 	},
 	"engines": {
 		"node": ">=18"