Bump @babel/preset-env from 7.7.4 to 7.7.6 (#12623)

Bumps [@babel/preset-env](https://github.com/babel/babel) from 7.7.4 to 7.7.6.
- [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/v7.7.4...v7.7.6)

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

package.json

@@ -64,7 +64,7 @@
     "@babel/plugin-proposal-decorators": "^7.7.4",
     "@babel/plugin-transform-react-inline-elements": "^7.7.4",
     "@babel/plugin-transform-runtime": "^7.7.6",
-    "@babel/preset-env": "^7.7.4",
+    "@babel/preset-env": "^7.7.6",
     "@babel/preset-react": "^7.7.4",
     "@babel/runtime": "^7.7.6",
     "@gamestdio/websocket": "^0.3.2",