Update package dependencies

package.json

@@ -19,18 +19,18 @@
     "test": "mocha test/**.js"
   },
   "dependencies": {
-    "@mapbox/mapbox-gl-native": "3.4.4",
+    "@mapbox/mapbox-gl-native": "3.5.0",
     "@mapbox/sphericalmercator": "1.0.5",
     "advanced-pool": "0.3.2",
-    "async": "2.2.0",
+    "async": "2.4.0",
     "base64url": "2.0.0",
     "canvas": "1.6.5",
     "clone": "2.1.1",
     "color": "1.0.3",
-    "cors": "2.8.2",
+    "cors": "2.8.3",
     "express": "4.15.2",
     "glyph-pbf-composite": "0.0.2",
-    "handlebars": "4.0.6",
+    "handlebars": "4.0.8",
     "http-shutdown": "^1.2.0",
     "mbtiles": "0.9.0",
     "morgan": "1.8.1",
@@ -39,7 +39,7 @@
     "pbf": "3.0.5",
     "proj4": "2.4.3",
     "request": "2.81.0",
-    "sharp": "0.17.2",
+    "sharp": "0.17.3",
     "tileserver-gl-styles": "1.1.1",
     "vector-tile": "1.3.0"
   },