Update crossterm requirement from 0.27.0 to 0.28.1

Updates the requirements on [crossterm](https://github.com/crossterm-rs/crossterm) to permit the latest version.
- [Release notes](https://github.com/crossterm-rs/crossterm/releases)
- [Changelog](https://github.com/crossterm-rs/crossterm/blob/master/CHANGELOG.md)
- [Commits](https://github.com/crossterm-rs/crossterm/commits)

---
updated-dependencies:
- dependency-name: crossterm
  dependency-type: direct:production
...

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

Cargo.toml

@@ -20,7 +20,7 @@ ratatui = "0.27.0"
 simple-easing = "1.0.1"
 
 [dev-dependencies]
-crossterm = "0.27.0"
+crossterm = "0.28.1"
 
 [[example]]
 name = "open-window"