feat: change bundle to target modern browser (#10)

superset-frontend/temporary_superset_ui/superset-ui-plugins-deckgl/.travis.yml

@@ -1,7 +1,7 @@
 language: node_js
 
 node_js:
-  - '10.15'
+  - '11'
 
 cache:
   - npm: true

superset-frontend/temporary_superset_ui/superset-ui-plugins-deckgl/package.json

@@ -47,7 +47,7 @@
     "@airbnb/config-typescript": "^2.1.2",
     "@airbnb/nimbus": "^2.1.3",
     "@superset-ui/commit-config": "^0.0.9",
-    "@superset-ui/superset-ui": "^0.12.5",
+    "@superset-ui/superset-ui": "^0.12.9",
     "@types/enzyme": "^3.10.3",
     "@types/jest": "^25.1.1",
     "@types/jsdom": "^12.2.4",