Bump next from 9.5.4 to 12.1.0

Bumps [next](https://github.com/vercel/next.js) from 9.5.4 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@v9.5.4...v12.1.0)

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

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

Author: dependabot[bot]

package.json

@@ -82,7 +82,7 @@
         "eslint-plugin-standard": "^4.0.1",
         "husky": "^4.3.0",
         "moment": "^2.27.0",
-        "next": "^9.5.2",
+        "next": "^12.1.0",
         "nyc": "^15.1.0",
         "prettier": "^2.0.5",
         "prop-types": "^15.7.2",