Ensure player entity schedulers are ticked when they are dead

If the player dies, then they are removed from the world and
as a result are not present in the world entity map.

To guarantee that the player entity scheduler is ticked, we can
tick all schedulers for players in the server player list, and
then skip all players we find in the world entity map.

This problem is not present on Folia since Folia must guarantee
that the player remains in the world.

paper-server/patches/features/0028-Optimize-Hoppers.patch

@@ -48,10 +48,10 @@ index 0000000000000000000000000000000000000000..24a2090e068ad3c0d08705050944abdf
 +    }
 +}
 diff --git a/net/minecraft/server/MinecraftServer.java b/net/minecraft/server/MinecraftServer.java
-index 39581095ccc69d113d954ed835bdfa32d25b5489..ce7d72e02797da1ae408d0d310420e30aaa0ce28 100644
+index cff9d761dfee8a90b19fb2f3e678f99a39fc000c..0a260fdf6b198a8ab52e60bf6db2fb5eab719c48 100644
 --- a/net/minecraft/server/MinecraftServer.java
 +++ b/net/minecraft/server/MinecraftServer.java
-@@ -1709,6 +1709,7 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
+@@ -1718,6 +1718,7 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
              serverLevel.hasPhysicsEvent = org.bukkit.event.block.BlockPhysicsEvent.getHandlerList().getRegisteredListeners().length > 0; // Paper - BlockPhysicsEvent
              serverLevel.hasEntityMoveEvent = io.papermc.paper.event.entity.EntityMoveEvent.getHandlerList().getRegisteredListeners().length > 0; // Paper - Add EntityMoveEvent
              serverLevel.updateLagCompensationTick(); // Paper - lag compensation