Bump next from 14.0.4 to 14.2.6

Bumps [next](https://github.com/vercel/next.js) from 14.0.4 to 14.2.6.
- [Release notes](https://github.com/vercel/next.js/releases)
- [Changelog](https://github.com/vercel/next.js/blob/canary/release.js)
- [Commits](vercel/next.js@v14.0.4...v14.2.6)

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

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

package.json

@@ -24,7 +24,7 @@
     "@toast-ui/editor": "^3.2.2",
     "@toast-ui/react-editor": "^3.2.3",
     "classnames": "^2.5.1",
-    "next": "14.0.4",
+    "next": "14.2.6",
     "next-auth": "^4.24.7",
     "npm-check-updates": "^16.14.18",
     "react": "^18",