breaking: update tokio-tungstenite to 0.25 and update examples

examples/websockets/src/main.rs

@@ -101,7 +101,7 @@ async fn ws_handler(
 /// Actual websocket statemachine (one will be spawned per connection)
 async fn handle_socket(mut socket: WebSocket, who: SocketAddr) {
     // send a ping (unsupported by some browsers) just to kick things off and get a response
-    if socket.send(Message::Ping(vec![1, 2, 3])).await.is_ok() {
+    if socket.send(Message::Ping(vec![1, 2, 3].into())).await.is_ok() {
         println!("Pinged {who}...");
     } else {
         println!("Could not send ping {who}!");
@@ -131,7 +131,7 @@ async fn handle_socket(mut socket: WebSocket, who: SocketAddr) {
     // connecting to server and receiving their greetings.
     for i in 1..5 {
         if socket
-            .send(Message::Text(format!("Hi {i} times!")))
+            .send(Message::Text(format!("Hi {i} times!").into()))
             .await
             .is_err()
         {
@@ -151,7 +151,7 @@ async fn handle_socket(mut socket: WebSocket, who: SocketAddr) {
         for i in 0..n_msg {
             // In case of any websocket error, we exit.
             if sender
-                .send(Message::Text(format!("Server message {i} ...")))
+                .send(Message::Text(format!("Server message {i} ...").into()))
                 .await
                 .is_err()
             {