Bump next from 12.0.5 to 12.0.8 in /packages/dashboard

Bumps [next](https://github.com/vercel/next.js) from 12.0.5 to 12.0.8.
- [Release notes](https://github.com/vercel/next.js/releases)
- [Changelog](https://github.com/vercel/next.js/blob/canary/release.js)
- [Commits](https://github.com/vercel/next.js/compare/v12.0.5...v12.0.8)

---
updated-dependencies:
- dependency-name: next
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

packages/dashboard/package.json

@@ -20,7 +20,7 @@
     "formik": "2.2.9",
     "http-status-codes": "2.2.0",
     "ky": "0.28.7",
-    "next": "12.0.5",
+    "next": "12.0.8",
     "normalize.css": "8.0.1",
     "pretty-bytes": "5.6.0",
     "react": "17.0.2",