Bump next from 11.1.2 to 12.1.0

Bumps [next](https://github.com/vercel/next.js) from 11.1.2 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@v11.1.2...v12.1.0)

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

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

Author: dependabot[bot]

package.json

@@ -9,7 +9,7 @@
     "@testing-library/react": "^11.2.7",
     "@testing-library/user-event": "^12.8.3",
     "gh-pages": "^3.2.3",
-    "next": "^11.1.2",
+    "next": "^12.1.0",
     "react": "^17.0.2",
     "react-dom": "^17.0.2",
     "react-toastify": "^9.0.8",