Updated Upstream (CraftBukkit/Spigot) (#7580)

Upstream has released updates that appear to apply and compile correctly.
This update has not been tested by PaperMC and as with ANY update, please do your own testing

Bukkit Changes:
881e06e5 PR-725: Add Item Unlimited Lifetime APIs

CraftBukkit Changes:
74c08312 SPIGOT-6962: Call EntityChangeBlockEvent when when FallingBlockEntity starts to fall
64db5126 SPIGOT-6959: Make /loot command ignore empty items for spawn
2d760831 Increase outdated build delay
9ed7e4fb SPIGOT-6138, SPIGOT-6415: Don't call CreatureSpawnEvent after cross-dimensional travel
fc4ad813 SPIGOT-6895: Trees grown with applyBoneMeal() don't fire the StructureGrowthEvent
59733a2e SPIGOT-6961: Actually return a copy of the ItemMeta

Spigot Changes:
ffceeae3 SPIGOT-6956: Drop unload queue patch as attempt at fixing stop issue
e19ddabd PR-1011: Add Item Unlimited Lifetime APIs
34d40b0e SPIGOT-2942: give command fires PlayerDropItemEvent, cancelling it causes Item Duplication

patches/server/0034-Optimize-explosions.patch

@@ -25,10 +25,10 @@ index bc35bdd9cbd544ae2ab27ad042d7d1b3166db9a6..2b0a75dc2e292e655ca3300f64bc1211
 +    }
  }
 diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java
-index 18f03367174651b93682d5e5f4350d8c7e6e3b98..ac88d79685c5f988d02122bce38d5af41fe11445 100644
+index e26818bd6fb2216ab9b363affe99e4b6c83cca6a..400a59336300b189a1b86621b53817940f9a599e 100644
 --- a/src/main/java/net/minecraft/server/MinecraftServer.java
 +++ b/src/main/java/net/minecraft/server/MinecraftServer.java
-@@ -1439,6 +1439,7 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
+@@ -1435,6 +1435,7 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
  
              this.profiler.pop();
              this.profiler.pop();