mono - fix: upgrade vitest cluster to 4.1.5

Upgrade vitest, @vitest/coverage-v8, and @vitest/spy from 4.1.3 to 4.1.5.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: jaredwray

package.json

@@ -23,10 +23,10 @@
     "@biomejs/biome": "^2.4.10",
     "@faker-js/faker": "^10.4.0",
     "@types/node": "^25.5.2",
-    "@vitest/coverage-v8": "^4.1.3",
-    "@vitest/spy": "^4.1.3",
+    "@vitest/coverage-v8": "^4.1.5",
+    "@vitest/spy": "^4.1.5",
     "rimraf": "^6.1.3",
-    "vitest": "^4.1.3",
+    "vitest": "^4.1.5",
     "wrangler": "^4.81.0"
   },
   "pnpm": {