Bump @babel/core from 7.8.4 to 7.9.0

Bumps [@babel/core](https://github.com/babel/babel) from 7.8.4 to 7.9.0.
- [Release notes](https://github.com/babel/babel/releases)
- [Changelog](https://github.com/babel/babel/blob/master/CHANGELOG.md)
- [Commits](babel/babel@v7.8.4...v7.9.0)

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

package.json

@@ -36,7 +36,7 @@
     "lodash": "4.17.15"
   },
   "devDependencies": {
-    "@babel/core": "7.8.4",
+    "@babel/core": "7.9.0",
     "@babel/preset-env": "7.8.4",
     "babel-jest": "25.3.0",
     "copy-webpack-plugin": "5.1.1",