Ignore cancelled PlayerDeathEvents (#6179)

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This PR closes #6178 . 

### Details

**Proposed feature:**  
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Essentials should ignore cancelled PlayerDeathEvents.


**Environments tested:**    

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OS: Linux

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Java version:  21

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- [ ] CraftBukkit 1.8.8


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Author: Jsinco

Essentials/src/main/java/com/earth2me/essentials/EssentialsEntityListener.java

@@ -156,7 +156,7 @@ public void onEntityCombustByEntity(final EntityCombustByEntityEvent event) {
         }
     }
 
-    @EventHandler(priority = EventPriority.LOWEST)
+    @EventHandler(priority = EventPriority.HIGH, ignoreCancelled = true)
     public void onPlayerDeathEvent(final PlayerDeathEvent event) {
         final Entity entity = event.getEntity();
         if (entity.hasMetadata("NPC")) {