Bump @material-ui/styles from 4.9.0 to 4.9.6 (#1377)
Bump @material-ui/styles from 4.9.0 to 4.9.6 (#1377)

Bumps [@material-ui/styles](https://github.com/mui-org/material-ui/tree/HEAD/packages/material-ui-styles) from 4.9.0 to 4.9.6.
- [Release notes](https://github.com/mui-org/material-ui/releases)
- [Changelog](https://github.com/mui-org/material-ui/blob/master/CHANGELOG.md)
- [Commits](https://github.com/mui-org/material-ui/commits/v4.9.6/packages/material-ui-styles)

Signed-off-by: dependabot-preview[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>

Co-authored-by: dependabot-preview[bot] <6a4c1c4838f800d1998274cd5234e1f65c55e90c@users.noreply.github.com>
u-wave/web,u-wave/web