Enhancement: Upgrade @babel/preset-env (#542)

package.json

@@ -13,7 +13,7 @@
   },
   "dependencies": {
     "@babel/polyfill": "^7.6.0",
-    "@babel/preset-env": "~7.3.4",
+    "@babel/preset-env": "~7.8.4",
     "@rails/actioncable": "^6.0.0",
     "@rails/webpacker": "^4.2.2",
     "axios": "^0.19.0",
@@ -58,7 +58,7 @@
     "@vue/babel-preset-app": "^3.11.0",
     "@vue/test-utils": "^1.0.0-beta.29",
     "babel-core": "^7.0.0-bridge.0",
-    "babel-eslint": "^10.0.1",
+    "babel-eslint": "^10.0.3",
     "babel-jest": "^25.1.0",
     "eslint": "^5.13.0",
     "eslint-config-airbnb": "^17.1.0",