feat: allow vite 6

Author: belgattitude

packages/vitest-plugin/package.json

@@ -31,7 +31,7 @@
     "@codspeed/core": "workspace:^4.0.0"
   },
   "peerDependencies": {
-    "vite": "^4.2.0 || ^5.0.0",
+    "vite": "^4.2.0 || ^5.0.0 || ^6.0.0",
     "vitest": ">=1.2.2"
   },
   "devDependencies": {