chore(package): update @babel/preset-env to version 7.5.0

Closes #38

Author: greenkeeper[bot]

package.json

@@ -34,7 +34,7 @@
     "@babel/plugin-syntax-dynamic-import": "7.2.0",
     "@babel/plugin-transform-runtime": "7.5.0",
     "@babel/polyfill": "7.4.4",
-    "@babel/preset-env": "7.4.5",
+    "@babel/preset-env": "7.5.0",
     "@babel/preset-react": "7.0.0",
     "@babel/register": "7.4.4",
     "@babel/runtime": "7.4.5",