chore(deps): update vitest monorepo to v2.1.6

Author: renovate[bot]

package.json

@@ -54,7 +54,7 @@
     "@release-it/bumper": "6.0.1",
     "@release-it/conventional-changelog": "8.0.2",
     "@types/node": "22.5.5",
-    "@vitest/coverage-v8": "2.1.1",
+    "@vitest/coverage-v8": "2.1.6",
     "husky": "9.1.6",
     "prettier": "3.3.3",
     "release-it": "17.6.0",
@@ -63,6 +63,6 @@
     "tsconfig-paths": "4.2.0",
     "typescript": "5.6.2",
     "vite": "5.4.6",
-    "vitest": "2.1.1"
+    "vitest": "2.1.6"
   }
 }