network: replace usage of sd_bus_call_method_async() to bus_call_method_async() (#24290)

src/shared/bus-locator.c

@@ -63,6 +63,12 @@ const BusLocator* const bus_timedate = &(BusLocator){
         .interface = "org.freedesktop.timedate1"
 };
 
+const BusLocator* const bus_hostname = &(BusLocator){
+        .destination = "org.freedesktop.hostname1",
+        .path = "/org/freedesktop/hostname1",
+        .interface = "org.freedesktop.hostname1"
+};
+
 /* Shorthand flavors of the sd-bus convenience helpers with destination,path,interface strings encapsulated
  * within a single struct. */
 int bus_call_method_async(

src/shared/bus-locator.h

@@ -19,6 +19,7 @@ extern const BusLocator* const bus_portable_mgr;
 extern const BusLocator* const bus_resolve_mgr;
 extern const BusLocator* const bus_systemd_mgr;
 extern const BusLocator* const bus_timedate;
+extern const BusLocator* const bus_hostname;
 
 /* Shorthand flavors of the sd-bus convenience helpers with destination,path,interface strings encapsulated
  * within a single struct. */