build(deps-dev): bump babel-plugin-polyfill-regenerator

Bumps [babel-plugin-polyfill-regenerator](https://github.com/babel/babel-polyfills/tree/HEAD/packages/babel-plugin-polyfill-regenerator) from 0.6.3 to 0.6.4.
- [Commits](https://github.com/babel/babel-polyfills/commits/babel-plugin-polyfill-regenerator@0.6.4/packages/babel-plugin-polyfill-regenerator)

---
updated-dependencies:
- dependency-name: babel-plugin-polyfill-regenerator
  dependency-type: indirect
  update-type: version-update:semver-patch
...

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Author: dependabot[bot]