chore(deps): update babel monorepo packages to v7.0.0-beta.39 (#10)

Author: renovate[bot]

package.json

@@ -27,12 +27,12 @@
     "svgr": "^1.7.0"
   },
   "devDependencies": {
-    "@babel/cli": "7.0.0-beta.38",
-    "@babel/core": "7.0.0-beta.38",
-    "@babel/node": "7.0.0-beta.38",
-    "@babel/plugin-proposal-object-rest-spread": "7.0.0-beta.38",
-    "@babel/preset-env": "7.0.0-beta.38",
-    "@babel/preset-flow": "7.0.0-beta.38",
+    "@babel/cli": "7.0.0-beta.39",
+    "@babel/core": "7.0.0-beta.39",
+    "@babel/node": "7.0.0-beta.39",
+    "@babel/plugin-proposal-object-rest-spread": "7.0.0-beta.39",
+    "@babel/preset-env": "7.0.0-beta.39",
+    "@babel/preset-flow": "7.0.0-beta.39",
     "ast-pretty-print": "2.0.1",
     "babel-core": "7.0.0-bridge.0",
     "babel-eslint": "8.2.1",