🧑‍💻 zn: Improve BusName Debug impl

This makes Debug impl of BusName transparent

Before:

Unique(UniqueName("foo"))

After:

UniqueName("foo")

zbus_names/src/bus_name.rs

@@ -43,7 +43,7 @@ use zvariant::{NoneValue, OwnedValue, Str, Type, Value};
 /// ```
 ///
 /// [bus name]: https://dbus.freedesktop.org/doc/dbus-specification.html#message-protocol-names-bus
-#[derive(Clone, Debug, Hash, PartialEq, Eq, PartialOrd, Ord, Serialize)]
+#[derive(Clone, Hash, PartialEq, Eq, PartialOrd, Ord, Serialize)]
 #[serde(untagged)]
 pub enum BusName<'name> {
     #[serde(borrow)]
@@ -112,6 +112,15 @@ impl Borrow<str> for BusName<'_> {
     }
 }
 
+impl Debug for BusName<'_> {
+    fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result {
+        match self {
+            BusName::Unique(n) => Debug::fmt(&n, f),
+            BusName::WellKnown(n) => Debug::fmt(&n, f),
+        }
+    }
+}
+
 impl Display for BusName<'_> {
     fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result {
         Display::fmt(&self.as_str(), f)