timers plugin: Update SDMM teleblock handling

[Per the updates for the upcoming
seasonal](https://www.runescape.com/oldschool/deadman/season), similar
to previous tournaments:

> Teleblock will now last for 150 seconds, or for 75 seconds with Protect from Magic active.

runelite-client/src/main/java/net/runelite/client/plugins/timers/TimersPlugin.java

@@ -439,6 +439,7 @@ public class TimersPlugin extends Plugin
 		if (config.showTeleblock() && event.getMessage().equals(HALF_TELEBLOCK_MESSAGE))
 		{
 			if (client.getWorldType().contains(WorldType.DEADMAN)
+				&& !client.getWorldType().contains(WorldType.SEASONAL_DEADMAN)
 				&& !client.getWorldType().contains(WorldType.DEADMAN_TOURNAMENT))
 			{
 				createGameTimer(DMM_FULLTB);