SPIGOT-4116: Increase command tab spam threshold

By: md_5 <git@md-5.net>

paper-server/nms-patches/PlayerConnection.patch

@@ -289,7 +289,7 @@
      public void a(PacketPlayInTabComplete packetplayintabcomplete) {
          PlayerConnectionUtils.ensureMainThread(packetplayintabcomplete, this, this.player.getWorldServer());
 +        // CraftBukkit start
-+        if (chatSpamField.addAndGet(this, 5) > 500 && !this.minecraftServer.getPlayerList().isOp(this.player.getProfile())) {
++        if (chatSpamField.addAndGet(this, 2) > 500 && !this.minecraftServer.getPlayerList().isOp(this.player.getProfile())) {
 +            this.disconnect(new ChatMessage("disconnect.spam", new Object[0]));
 +            return;
 +        }