chore(deps-dev): bump @rollup/plugin-babel from 5.0.4 to 5.1.0

Bumps [@rollup/plugin-babel](https://github.com/rollup/plugins) from 5.0.4 to 5.1.0.
- [Release notes](https://github.com/rollup/plugins/releases)
- [Commits](rollup/plugins@babel-v5.0.4...babel-v5.1.0)

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