Bump @babel/plugin-proposal-class-properties from 7.8.3 to 7.10.4 (#245)

Bumps [@babel/plugin-proposal-class-properties](https://github.com/babel/babel/tree/HEAD/packages/babel-plugin-proposal-class-properties) from 7.8.3 to 7.10.4.
- [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/v7.10.4/packages/babel-plugin-proposal-class-properties)

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