Bump superjson from 1.7.5 to 1.8.1 in /examples/next-prisma-trpc

Bumps [superjson](https://github.com/blitz-js/superjson) from 1.7.5 to 1.8.1.
- [Release notes](https://github.com/blitz-js/superjson/releases)
- [Commits](https://github.com/blitz-js/superjson/compare/v1.7.5...v1.8.1)

---
updated-dependencies:
- dependency-name: superjson
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

examples/next-prisma-trpc/package.json

@@ -40,7 +40,7 @@
     "react-dom": "^17.0.2",
     "react-query": "^3.6.0",
     "start-server-and-test": "^1.12.0",
-    "superjson": "^1.7.4",
+    "superjson": "^1.8.1",
     "zod": "^3.0.0"
   },
   "devDependencies": {