build(deps): update sys-mount requirement from 2.1.1 to 3.0.0

Updates the requirements on [sys-mount](https://github.com/pop-os/sys-mount) to permit the latest version.
- [Release notes](https://github.com/pop-os/sys-mount/releases)
- [Changelog](https://github.com/pop-os/sys-mount/blob/master/CHANGELOG.md)
- [Commits](https://github.com/pop-os/sys-mount/compare/2.1.1...2.1.1)

---
updated-dependencies:
- dependency-name: sys-mount
  dependency-type: direct:production
...

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

Cargo.toml

@@ -49,7 +49,7 @@ version = "1.6.1"
 features = ["v4"]
 
 [workspace.dependencies.sys-mount]
-version = "2.1.1"
+version = "3.0.0"
 default-features = false
 
 [workspace.dependencies.clap]