Update strum requirement from 0.27 to 0.28 (#56)

Updates the requirements on [strum](https://github.com/Peternator7/strum) to permit the latest version.
- [Release notes](https://github.com/Peternator7/strum/releases)
- [Changelog](https://github.com/Peternator7/strum/blob/master/CHANGELOG.md)
- [Commits](Peternator7/strum@v0.27.0...v0.28.0)

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

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Author: dependabot[bot]

Cargo.toml

@@ -38,7 +38,7 @@ tracker = [
 [dependencies]
 thiserror = "2"
 scan_fmt = "0.1.3"
-strum = "0.27"
+strum = "0.28"
 itertools = "0.14"
 strum_macros = "0.27"
 flate2 = { version = "1", optional = true }