fix: do not try to re-resize while at max packet buffer size

src/main/java/net/minestom/server/network/packet/PacketWriting.java

@@ -202,6 +202,7 @@ public final class PacketWriting {
                 if (written < minWrite) {
                     // Try again with a bigger buffer
                     final long newSize = Math.min(buffer.capacity() * 2, ServerFlag.MAX_PACKET_SIZE);
+                    if (newSize == buffer.capacity()) break; // We reached the maximum size
                     buffer.resize(newSize);
                 } else {
                     // At least one packet has been written