build(deps): bump @babel/core from 7.7.7 to 7.8.0

Bumps [@babel/core](https://github.com/babel/babel) from 7.7.7 to 7.8.0.
- [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/v7.7.7...v7.8.0)

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

package.json

@@ -4,7 +4,7 @@
   "version": "4.129.2",
   "main": "./website/server/index.js",
   "dependencies": {
-    "@babel/core": "^7.7.7",
+    "@babel/core": "^7.8.0",
     "@babel/preset-env": "^7.7.7",
     "@babel/register": "^7.7.7",
     "@google-cloud/trace-agent": "^4.2.4",