⬆️ Bump @babel/plugin-transform-runtime from 7.12.13 to 7.12.15

Bumps [@babel/plugin-transform-runtime](https://github.com/babel/babel/tree/HEAD/packages/babel-plugin-transform-runtime) from 7.12.13 to 7.12.15.
- [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/v7.12.15/packages/babel-plugin-transform-runtime)

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