build(deps): bump zbus from 3.14.1 to 3.15.0

Bumps [zbus](https://github.com/dbus2/zbus) from 3.14.1 to 3.15.0.
- [Release notes](https://github.com/dbus2/zbus/releases)
- [Commits](z-galaxy/zbus@zbus-3.14.1...zbus-3.15.0)

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

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

Author: dependabot[bot]

Cargo.lock

@@ -130,7 +130,7 @@ system-tray = { version = "0.1.5", optional = true }
 # upower
 upower_dbus = { version = "0.3.2", optional = true }
 futures-lite = { version = "2.2.0", optional = true }
-zbus = { version = "3.14.1", optional = true }
+zbus = { version = "3.15.0", optional = true }
 
 # workspaces
 swayipc-async = { version = "2.0.1", optional = true }