Use ..Default::default() with a struct constructor (#3068)

As @jtran pointed out - I had misunderstood the behavior of
Default::default(), we can instead rely on this syntax to do the same
thing. This won't use each field's default value -- rather, it'll use
the type's Default, and override each field. Neat!

Signed-off-by: Paul Tagliamonte <paul@zoo.dev>

src/wasm-lib/kcl/src/engine/conn.rs

@@ -160,19 +160,13 @@ impl EngineConnection {
         Ok(())
     }
 
-    #[allow(clippy::field_reassign_with_default)]
     pub async fn new(ws: reqwest::Upgraded) -> Result<EngineConnection> {
-        // allowing the field_reassign_with_default lint here because the
-        // defaults for this object don't match the type defaults. We want
-        // to inherent the default config
-        //
-        // See the `impl Default for WebSocketConfig` in
-        // `tungstenite/protocol/mod.rs`
-
-        let mut wsconfig = tokio_tungstenite::tungstenite::protocol::WebSocketConfig::default();
-        // 4294967296 bytes, which is around 4.2 GB.
-        wsconfig.max_message_size = Some(0x100000000);
-        wsconfig.max_frame_size = Some(0x100000000);
+        let wsconfig = tokio_tungstenite::tungstenite::protocol::WebSocketConfig {
+            // 4294967296 bytes, which is around 4.2 GB.
+            max_message_size: Some(0x100000000),
+            max_frame_size: Some(0x100000000),
+            ..Default::default()
+        };
 
         let ws_stream = tokio_tungstenite::WebSocketStream::from_raw_socket(
             ws,