Bump eframe from 0.28.1 to 0.29.1

Bumps [eframe](https://github.com/emilk/egui) from 0.28.1 to 0.29.1.
- [Release notes](https://github.com/emilk/egui/releases)
- [Changelog](https://github.com/emilk/egui/blob/master/CHANGELOG.md)
- [Commits](emilk/egui@0.28.1...0.29.1)

---
updated-dependencies:
- dependency-name: eframe
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]