fix(deps): update dependency @react-leaflet/core to v3

Author: renovate[bot]

package.json

@@ -17,7 +17,7 @@
   "dependencies": {
     "@fortawesome/fontawesome-free": "5.15.4",
     "@maplibre/maplibre-gl-leaflet": "0.0.22",
-    "@react-leaflet/core": "^2.1.0",
+    "@react-leaflet/core": "^3.0.0",
     "adhocracy4": "git+https://github.com/liqd/adhocracy4#82fb1ef56b03d51b8bb9d1b2edddcb5f75a96344",
     "autoprefixer": "10.4.20",
     "bootstrap": "5.2.3",