refactor: upgrade to zbus v5

Also drops the deprecated `upower-dbus` crate

src/clients/upower/mod.rs

@@ -0,0 +1,34 @@
+mod device;
+mod upower;
+
+use crate::clients::ClientResult;
+use crate::register_fallible_client;
+use std::sync::Arc;
+use upower::UPowerProxy;
+use zbus::fdo::PropertiesProxy;
+use zbus::proxy::CacheProperties;
+
+pub use device::BatteryState;
+
+pub async fn create_display_proxy() -> ClientResult<PropertiesProxy<'static>> {
+    let dbus = Box::pin(zbus::Connection::system()).await?;
+
+    let device_proxy = UPowerProxy::new(&dbus).await?;
+
+    let display_device = device_proxy.get_display_device().await?;
+
+    let path = display_device.inner().path();
+
+    let proxy = PropertiesProxy::builder(&dbus)
+        .destination("org.freedesktop.UPower")
+        .expect("failed to set proxy destination address")
+        .path(path)
+        .expect("failed to set proxy path")
+        .cache_properties(CacheProperties::No)
+        .build()
+        .await?;
+
+    Ok(Arc::new(proxy))
+}
+
+register_fallible_client!(PropertiesProxy<'static>, upower);