build(deps): update vitest monorepo to v4.0.18

Author: renovate[bot]

bun.lock

@@ -40,12 +40,12 @@
 		"@tsconfig/node24": "24.0.3",
 		"@tsconfig/strictest": "2.0.8",
 		"@types/node": "24.10.9",
-		"@vitest/coverage-v8": "4.0.17",
+		"@vitest/coverage-v8": "4.0.18",
 		"prettier": "3.8.0",
 		"prettier-plugin-packagejson": "2.5.21",
 		"tsx": "4.21.0",
 		"typescript": "5.9.3",
-		"vitest": "4.0.17"
+		"vitest": "4.0.18"
 	},
 	"packageManager": "bun@1.3.9"
 }