fix(combat): players are getting kicked when attacking dead entities (#271)

* fix(combat): kick players attacking dead players (health <= 0.0)

pumpkin/src/client/player_packet.rs

@@ -454,7 +454,11 @@ impl Player {
                         .await;
                     return;
                 };
-
+                if victim.living_entity.health.load() <= 0.0 {
+                    // you can trigger this from a non-modded / innocent client client,
+                    // so we shouldn't kick the player
+                    return;
+                }
                 self.attack(&victim).await;
             }
             ActionType::Interact | ActionType::InteractAt => {