build(deps): bump strum from 0.27.2 to 0.28.0

Bumps [strum](https://github.com/Peternator7/strum) from 0.27.2 to 0.28.0.
- [Release notes](https://github.com/Peternator7/strum/releases)
- [Changelog](https://github.com/Peternator7/strum/blob/master/CHANGELOG.md)
- [Commits](https://github.com/Peternator7/strum/compare/v0.27.2...v0.28.0)

---
updated-dependencies:
- dependency-name: strum
  dependency-version: 0.28.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>