Bumps [@babel/standalone](https://github.com/babel/babel/tree/HEAD/packages/babel-standalone) from 7.12.3 to 7.12.4. - [Release notes](https://github.com/babel/babel/releases) - [Changelog](https://github.com/babel/babel/blob/main/CHANGELOG.md) - [Commits](https://github.com/babel/babel/commits/v7.12.4/packages/babel-standalone) Signed-off-by: dependabot[bot] <support@github.com>