Geyser incompatibility

[Camotoy]

Hello! Got an error with this plugin on our support channels.

Caused by: java.lang.ClassCastException: class com.github.steveice10.packetlib.io.local.ChannelWrapper cannot be cast to class io.netty.channel.socket.SocketChannel (com.github.steveice10.packetlib.io.local.ChannelWrapper is in unnamed module of loader 'Geyser-Spigot.jar' @c83c92e; io.netty.channel.socket.SocketChannel is in unnamed module of loader 'app')
        at net.rezxis.mctp.client.netty.NettyChannelInitializer.initChannel(NettyChannelInitializer.java:16) ~[MinecraftTransport-Client-0.0.3-SNAPSHOT.jar:?]
        ... 21 more

Geyser by default now uses a separate Channel implementation that doesn't extend SocketChannel. The fix should be as simple as having the diamond parameter in https://github.com/RezxisNetwork/MinecraftTransport-Client/blob/master/src/main/java/net/rezxis/mctp/client/netty/NettyChannelInitializer.java just be Channel instead of SocketChannel. It's a change I'd recommend making anyway as eventually PaperMC/Paper#5611 may cause an issue down the line as Unix domain socket channels don't extend SocketChannel.

Thanks!