Update dependency mapbox-gl to v0.54.1

Author: renovate-bot

package.json

@@ -37,7 +37,7 @@
   "dependencies": {
     "@turf/helpers": "6.1.4",
     "es6-promise": "4.2.5",
-    "mapbox-gl": "0.49.0",
+    "mapbox-gl": "0.54.1",
     "unfetch": "3.1.1"
   },
   "devDependencies": {