fix(deps): update dependency next to v11 [security]

Author: renovate[bot]

app/package.json

@@ -18,7 +18,7 @@
     "firebase-admin": "8.13.0",
     "firebase-functions": "3.16.0",
     "immer": "8.0.4",
-    "next": "9.5.5",
+    "next": "11.1.3",
     "react": "17.0.2",
     "react-dom": "17.0.2",
     "react-semantic-toasts": "0.6.5",