Updated Upstream (Paper)

Upstream has released updates that appear to apply and compile correctly

Paper Changes:
PaperMC/Paper@681c013 Bundle spark (#11093)
PaperMC/Paper@5fee9c6 Move configuration option to a system property
PaperMC/Paper@aa3b356 Improve server startup logging (#11110)
PaperMC/Paper@9aea240 Properly lookup plugin classes when looked up by spark
PaperMC/Paper@7e91a2c Update the bundled spark version

patches/server/0248-Add-local-difficulty-api.patch

@@ -0,0 +1,23 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: BillyGalbreath <blake.galbreath@gmail.com>
+Date: Sat, 9 Jul 2022 00:57:32 -0500
+Subject: [PATCH] Add local difficulty api
+
+
+diff --git a/src/main/java/org/bukkit/craftbukkit/CraftWorld.java b/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
+index 362ca138a5cd5ad19f1300015c2571794adc3649..e771af8e79f0a89bc88d3c573b062dc7321fb36b 100644
+--- a/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
++++ b/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
+@@ -2338,6 +2338,12 @@ public class CraftWorld extends CraftRegionAccessor implements World {
+         return (this.getHandle().getDragonFight() == null) ? null : new CraftDragonBattle(this.getHandle().getDragonFight());
+     }
+ 
++    // Purpur start
++    public float getLocalDifficultyAt(Location location) {
++        return getHandle().getCurrentDifficultyAt(io.papermc.paper.util.MCUtil.toBlockPosition(location)).getEffectiveDifficulty();
++    }
++    // Purpur end
++
+     @Override
+     public Collection<GeneratedStructure> getStructures(int x, int z) {
+         return this.getStructures(x, z, struct -> true);