Switch nethernet library dependency to maven central

Co-authored-by: Joshua Castle <[email protected]>
Closes #557

Author: RaphiMC

build.gradle

@@ -45,7 +45,6 @@ repositories {
 
         content {
             includeGroupByRegex "com\\.github\\..+"
-            includeGroupByRegex "dev\\.kastle\\..+"
         }
     }
 }
@@ -102,7 +101,7 @@ dependencies {
     includeInJar("dev.kastle.netty:netty-transport-raknet:1.5.2") {
         exclude group: "io.netty"
     }
-    includeInJar("dev.kastle.NetworkCompatible:netty-transport-nethernet:6a8915db93") {
+    includeInJar("dev.kastle.netty:netty-transport-nethernet:1.6.0") {
         exclude group: "io.netty"
     }
     ["windows-x86_64", "windows-aarch64", "linux-x86_64", "linux-aarch64", "macos-aarch64"].each {

src/main/java/net/raphimc/viaproxy/proxy/session/BedrockProxyConnection.java

@@ -121,6 +121,7 @@ protected void initializeNetherNet(final TransportType transportType, final Boot
                 .group(EventLoops.getClientEventLoop(TransportType.NIO))
                 .channelFactory(NetherNetChannelFactory.client(new PeerConnectionFactory(), netherNetSignaling))
                 .option(NetherChannelOption.NETHER_CLIENT_HANDSHAKE_TIMEOUT_MS, ViaProxy.getConfig().getConnectTimeout())
+                .option(NetherChannelOption.NETHER_CLIENT_MAX_HANDSHAKE_ATTEMPTS, 1)
                 .handler(new ChannelInitializer<>() {
                     @Override
                     protected void initChannel(final Channel channel) {