Fix tests again

Author: basaigh

example/src/main/java/org/geysermc/mcprotocollib/protocol/example/MinecraftProtocolTest.java

@@ -220,7 +220,7 @@ private static void login() {
             @Override
             public void packetReceived(Session session, Packet packet) {
                 if (packet instanceof ClientboundLoginPacket) {
-                    session.send(new ServerboundChatPacket("Hello, this is a test of MCProtocolLib.", Instant.now().toEpochMilli(), 0L, null, 0, new BitSet()));
+                    session.send(new ServerboundChatPacket("Hello, this is a test of MCProtocolLib.", Instant.now().toEpochMilli(), 0L, null, 0, new BitSet(), 0));
                 } else if (packet instanceof ClientboundSystemChatPacket systemChatPacket) {
                     Component message = systemChatPacket.getContent();
                     log.info("Received Message: {}", message);

protocol/src/main/java/org/geysermc/mcprotocollib/protocol/packet/ingame/serverbound/ServerboundChatPacket.java

@@ -21,7 +21,7 @@ public class ServerboundChatPacket implements MinecraftPacket {
     private final byte @Nullable [] signature;
     private final int offset;
     private final BitSet acknowledgedMessages;
-    private final byte checksum;
+    private final int checksum;
 
     public ServerboundChatPacket(ByteBuf in) {
         this.message = MinecraftTypes.readString(in);