Bump next from 9.1.1 to 11.1.3

Bumps [next](https://github.com/vercel/next.js) from 9.1.1 to 11.1.3.
- [Release notes](https://github.com/vercel/next.js/releases)
- [Changelog](https://github.com/vercel/next.js/blob/canary/release.js)
- [Commits](vercel/next.js@v9.1.1...v11.1.3)

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

Signed-off-by: dependabot[bot] <[email protected]>

package.json

@@ -35,7 +35,7 @@
     "lory.js": "^2.5.3",
     "marked": "0.3.19",
     "mkdirp": "^0.5.1",
-    "next": "^8.1.0",
+    "next": "^11.1.3",
     "npm-run-all": "^4.1.5",
     "prop-types": "^15.8.0",
     "pug": "^3.0.2",