deps(cargo): bump the rust group with 2 updates (#559)

Bumps the rust group with 2 updates: [toml](https://github.com/toml-rs/toml) and [zbus](https://github.com/dbus2/zbus).


Updates `toml` from 0.8.19 to 0.8.20
- [Commits](toml-rs/toml@toml-v0.8.19...toml-v0.8.20)

Updates `zbus` from 5.3.1 to 5.5.0
- [Release notes](https://github.com/dbus2/zbus/releases)
- [Commits](dbus2/zbus@zbus-5.3.1...zbus-5.5.0)

---
updated-dependencies:
- dependency-name: toml
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: rust
- dependency-name: zbus
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: rust
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

Cargo.lock

@@ -17,7 +17,7 @@ tap = "1"
 thiserror = "2"
 tokio = { version = "1.43", features = ["sync", "rt", "macros"] }
 tracing = "0.1"
-zbus = { version = "5.3", default-features = false, features = ["tokio"] }
+zbus = { version = "5.5", default-features = false, features = ["tokio"] }
 
 [dev-dependencies]
 tokio = { version = "1.43", features = ["sync", "macros", "rt-multi-thread"] }