Bump @unlimited-react-components/material-button from 1.2.6 to 1.2.8

Bumps [@unlimited-react-components/material-button](https://github.com/unlimited-react-components/material-button) from 1.2.6 to 1.2.8.
- [Release notes](https://github.com/unlimited-react-components/material-button/releases)
- [Changelog](https://github.com/unlimited-react-components/material-button/blob/master/CHANGELOG.md)
- [Commits](https://github.com/unlimited-react-components/material-button/commits)

---
updated-dependencies:
- dependency-name: "@unlimited-react-components/material-button"
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]