Fix remaining issues

Signed-off-by: James Rhodes <jarhodes314@gmail.com>

crates/extensions/c8y_config_manager/src/actor.rs

@@ -245,6 +245,7 @@ impl ConfigManagerActor {
                     let plugin_config = PluginConfig::new(&path);
                     let message = plugin_config.to_supported_config_types_message_for_child(
                         &parent_dir_name.to_string_lossy(),
+                        &self.config.c8y_prefix,
                     )?;
                     self.messages.send(message.into()).await?;
                 }

crates/extensions/c8y_config_manager/src/upload.rs

@@ -316,8 +316,10 @@ impl ConfigUploadManager {
             )));
 
             // Publish supported configuration types for child devices
-            let message = child_plugin_config
-                .to_supported_config_types_message_for_child(&config_response.get_child_id())?;
+            let message = child_plugin_config.to_supported_config_types_message_for_child(
+                &config_response.get_child_id(),
+                &self.config.c8y_prefix,
+            )?;
             Ok(vec![message])
         }
     }

crates/extensions/c8y_firmware_manager/src/lib.rs

@@ -28,6 +28,7 @@ use tedge_actors::RuntimeRequest;
 use tedge_actors::RuntimeRequestSink;
 use tedge_actors::ServiceProvider;
 use tedge_api::path::DataDir;
+use tedge_config::TopicPrefix;
 use tedge_mqtt_ext::MqttMessage;
 use tedge_mqtt_ext::TopicFilter;
 use tedge_timer_ext::SetTimeout;
@@ -62,8 +63,10 @@ impl FirmwareManagerBuilder {
             signal_receiver,
         );
 
-        let mqtt_publisher =
-            mqtt_actor.connect_consumer(Self::subscriptions(), input_sender.clone().into());
+        let mqtt_publisher = mqtt_actor.connect_consumer(
+            Self::subscriptions(&config.c8y_prefix),
+            input_sender.clone().into(),
+        );
         let jwt_retriever = JwtRetriever::new("Firmware => JWT", jwt_actor);
         let timer_sender = timer_actor.connect_consumer(NoConfig, input_sender.clone().into());
         let download_sender = downloader_actor.connect_consumer(NoConfig, input_sender.into());
@@ -85,9 +88,9 @@ impl FirmwareManagerBuilder {
         Ok(())
     }
 
-    pub fn subscriptions(&self) -> TopicFilter {
+    fn subscriptions(prefix: &TopicPrefix) -> TopicFilter {
         vec![
-            &format!("{}/s/ds", self.config.c8y_prefix),
+            &format!("{prefix}/s/ds"),
             "tedge/+/commands/res/firmware_update",
         ]
         .try_into()