There is no breaking change at the protocol level.

Reference: https://socket.io/blog/socket-io-4-release/

The URL constructor does not support the ws:// scheme, and would throw:

> java.net.MalformedURLException: unknown protocol: ws

Related:

- socketio#650
- socketio#555
- socketio#233

Note: we cannot update the `IO.socket(uri: string)` method without
doing a breaking change.

- replace explicit types by <>
- remove unnecessary interface modifiers

Before this commit, an event sent in the "connect" handler could be
sent before the events that were buffered while disconnected.

Related: socketio/socket.io-client#1458

This commit should prevent some NPE issues encountered after the
parsing of the packet.

Related:

- socketio#642
- socketio#609
- socketio#505

See also: socketio/socket.io-client@53c7374

Reference: https://docs.gradle.org/current/userguide/upgrading_version_5.html#dependencies_should_no_longer_be_declared_using_the_compile_and_runtime_configurations

Some links were broken due to recent updates.

Related: socketio#693

…ocketio#695)

Previously, the event name of packets received during the connection
handshake would not be removed from the arguments array:

```java
socket.on("my-event", new Emitter.Listener() {
    @OverRide
    public void call(Object... args) {
        System.out.println(Arrays.toString(args)); // prints ["my-event", "arg1", "arg2", "arg3"]
    }
});
```