Bump next from 12.0.9 to 12.1.0 in /cypress/test-server

Bumps [next](https://github.com/vercel/next.js) from 12.0.9 to 12.1.0.
- [Release notes](https://github.com/vercel/next.js/releases)
- [Changelog](https://github.com/vercel/next.js/blob/canary/release.js)
- [Commits](vercel/next.js@v12.0.9...v12.1.0)

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

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

Author: dependabot[bot]

cypress/test-server/package-lock.json

@@ -10,7 +10,7 @@
   "author": "",
   "license": "ISC",
   "dependencies": {
-    "next": "^12.0.9",
+    "next": "^12.1.0",
     "react": "^17.0.2",
     "react-dom": "^17.0.2"
   }