Bump zod and next

Removes [zod](https://github.com/colinhacks/zod). It's no longer used after updating ancestor dependency [next](https://github.com/vercel/next.js). These dependencies need to be updated together.


Removes `zod`

Updates `next` from 13.5.1 to 13.5.6
- [Release notes](https://github.com/vercel/next.js/releases)
- [Changelog](https://github.com/vercel/next.js/blob/canary/release.js)
- [Commits](vercel/next.js@v13.5.1...v13.5.6)

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

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

package.json

@@ -26,7 +26,7 @@
     "framer-motion": "^10.11.5",
     "glidejs": "^2.1.0",
     "mongoose": "^7.2.2",
-    "next": "13.5.1",
+    "next": "13.5.6",
     "next-api-decorators": "^2.0.2",
     "react": "18.2.0",
     "react-dom": "18.2.0",