feat: added async aquila client creation

Author: raphael-goetz

crates/base/src/runner.rs

@@ -58,7 +58,7 @@ impl<C: LoadConfig> ServerRunner<C> {
             let definition_service = FlowUpdateService::from_url(
                 config.aquila_url.clone(),
                 config.definition_path.as_str(),
-            );
+            ).await;
             definition_service.send().await;
         }