Fix metric ordering (#1043)

rust/ethers-prometheus/src/json_rpc_client.rs

@@ -154,6 +154,9 @@ where
             "chain" => self.config.chain_name(),
             "method" => method
         };
+        if let Some(counter) = &self.metrics.request_count {
+            counter.with(&labels).inc()
+        }
         let start = Instant::now();
         let res = self.inner.request(method, params).await;
         if let Some(counter) = &self.metrics.request_failure_count {
@@ -161,9 +164,6 @@ where
                 counter.with(&labels).inc()
             }
         }
-        if let Some(counter) = &self.metrics.request_count {
-            counter.with(&labels).inc()
-        }
         if let Some(counter) = &self.metrics.request_duration_seconds {
             counter
                 .with(&labels)