chore: bump roboter from 11.2.26 to 11.2.28 (#141)

Bumps [roboter](https://github.com/thenativeweb/roboter) from 11.2.26 to 11.2.28.
- [Release notes](https://github.com/thenativeweb/roboter/releases)
- [Changelog](https://github.com/thenativeweb/roboter/blob/master/CHANGELOG.md)
- [Commits](thenativeweb/roboter@11.2.26...11.2.28)

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