[WIP]: remove block_on on current runtime

Author: dlachaume

mithril-common/src/test_utils/test_http_server.rs

@@ -60,7 +60,7 @@ where
 {
     //Spawn new runtime in thread to prevent reactor execution context conflict
     thread::spawn(move || {
-        let rt = runtime::Builder::new_multi_thread()
+        let rt = runtime::Builder::new_current_thread()
             .enable_all()
             .build()
             .expect("new rt");
@@ -78,8 +78,8 @@ where
         );
         thread::Builder::new()
             .name(thread_name)
-            .spawn(move || {
-                rt.block_on(server);
+            .spawn(async move || {
+                server.await;
                 let _ = panic_tx.send(());
             })
             .expect("thread spawn");