chore: add mcp-utils to root test script

Author: gregnr

package.json

@@ -4,7 +4,7 @@
   ],
   "scripts": {
     "build": "npm run build --workspace @supabase/mcp-utils --workspace @supabase/mcp-server-supabase",
-    "test": "npm run test --workspace @supabase/mcp-server-supabase"
+    "test": "npm run test --workspace @supabase/mcp-utils --workspace @supabase/mcp-server-supabase"
   },
   "devDependencies": {
     "supabase": "^2.1.1"