Bump @babel/register from 7.7.0 to 7.8.3

Bumps [@babel/register](https://github.com/babel/babel) from 7.7.0 to 7.8.3.
- [Release notes](https://github.com/babel/babel/releases)
- [Changelog](https://github.com/babel/babel/blob/master/CHANGELOG.md)
- [Commits](babel/babel@v7.7.0...v7.8.3)

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

package.json

@@ -80,7 +80,7 @@
     "@babel/preset-env": "^7.7.4",
     "@babel/preset-flow": "^7.8.3",
     "@babel/preset-react": "^7.7.4",
-    "@babel/register": "^7.7.0",
+    "@babel/register": "^7.8.3",
     "@parity/dapp-console": "parity-js/dapp-console#6a48e07ce930443c72f93032c45186db7753db33",
     "@parity/dapp-dapp-methods": "github:js-dist-paritytech/dapp-dapp-methods#14c85948eb2036658f3d269ed435a9bb079d23f8",
     "@parity/dapp-dapp-visible": "github:js-dist-paritytech/dapp-dapp-visible#0104368c00d5dca7309e2dc882b90f082df4a4c4",