Bump material from 1.2.0 to 1.2.1

Bumps [material](https://github.com/material-components/material-components-android) from 1.2.0 to 1.2.1.
- [Release notes](https://github.com/material-components/material-components-android/releases)
- [Commits](https://github.com/material-components/material-components-android/compare/1.2.0...1.2.1

)

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