feat!(deps): upgrade dependency next to v14 [security]

Signed-off-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

package.json

@@ -29,7 +29,7 @@
     "leaflet": "^1.9.3",
     "leaflet-defaulticon-compatibility": "^0.1.1",
     "leaflet-easybutton": "^2.4.0",
-    "next": "^12.3.4",
+    "next": "^14.0.0",
     "next-pwa": "^5.6.0",
     "next-seo": "^6.5.0",
     "react": "^18.2.0",