Bump @babel/cli from 7.2.3 to 7.8.4

Bumps [@babel/cli](https://github.com/babel/babel) from 7.2.3 to 7.8.4.
- [Release notes](https://github.com/babel/babel/releases)
- [Changelog](https://github.com/babel/babel/blob/master/CHANGELOG.md)
- [Commits](babel/babel@v7.2.3...v7.8.4)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Author: dependabot-preview[bot]

package.json

@@ -34,7 +34,7 @@
     "react-dom": "16.8.4"
   },
   "devDependencies": {
-    "@babel/cli": "7.2.3",
+    "@babel/cli": "7.8.4",
     "@babel/core": "7.4.0",
     "@babel/plugin-syntax-dynamic-import": "7.2.0",
     "@babel/preset-env": "7.4.2",