Bump @babel/cli from 7.7.5 to 7.8.4

Bumps [@babel/cli](https://github.com/babel/babel) from 7.7.5 to 7.8.4.
- [Release notes](https://github.com/babel/babel/releases)
- [Changelog](https://github.com/babel/babel/blob/master/CHANGELOG.md)
- [Commits](https://github.com/babel/babel/compare/v7.7.5...v7.8.4)

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

package.json

@@ -17,7 +17,7 @@
     "@actions/github": "^2.0.0"
   },
   "devDependencies": {
-    "@babel/cli": "7.7.5",
+    "@babel/cli": "7.8.4",
     "@babel/core": "7.7.5",
     "@babel/preset-env": "7.7.7",
     "@zeit/ncc": "0.20.5",