fix: manual Clone impl for TronHttpChannel to track provider instance metrics

Author: paulbalaji

rust/main/chains/hyperlane-tron/src/provider/http_client.rs

@@ -29,14 +29,27 @@ pub struct TronHttpProvider {
 }
 
 /// A single HTTP channel used by the FallbackProvider
-#[derive(Clone, Debug)]
+#[derive(Debug)]
 pub struct TronHttpChannel {
     client: Client,
     base_url: Url,
     metrics: PrometheusClientMetrics,
     config: PrometheusConfig,
 }
 
+impl Clone for TronHttpChannel {
+    fn clone(&self) -> Self {
+        let chain_name = PrometheusConfig::chain_name(&self.config.chain);
+        self.metrics.increment_provider_instance(chain_name);
+        Self {
+            client: self.client.clone(),
+            base_url: self.base_url.clone(),
+            metrics: self.metrics.clone(),
+            config: self.config.clone(),
+        }
+    }
+}
+
 impl TronHttpChannel {
     fn new(
         url: &Url,