Add use_tls option for interop tests

tonic-examples/src/helloworld/client.rs

@@ -7,10 +7,7 @@ pub mod hello_world {
 
 #[tokio::main]
 async fn main() -> Result<(), Box<dyn std::error::Error>> {
-    let origin = vec![
-        http::Uri::from_static("http://[::1]:50051").into(),
-
-    ];
+    let origin = vec![http::Uri::from_static("http://[::1]:50051").into()];
 
     let svc = Channel::builder().balance_list(origin)?;