[Auto] Updated Upstream (Bukkit/CraftBukkit)

Upstream has released updates that appears 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:
310dc809 Add ServerLoadEvent

CraftBukkit Changes:
19d654bd Add ServerLoadEvent

Spigot-Server-Patches/Paper-config-files.patch

@@ -560,7 +560,7 @@ index c6434ec371..17bfa356f1 100644
 +    // Paper end
  }
 diff --git a/src/main/java/net/minecraft/server/World.java b/src/main/java/net/minecraft/server/World.java
-index 8d69cea10e..028678379a 100644
+index cf3749507a..169294b3c3 100644
 --- a/src/main/java/net/minecraft/server/World.java
 +++ b/src/main/java/net/minecraft/server/World.java
 @@ -0,0 +0,0 @@ public abstract class World implements IEntityAccess, GeneratorAccess, IIBlockAc
@@ -581,7 +581,7 @@ index 8d69cea10e..028678379a 100644
          this.world = new CraftWorld((WorldServer) this, gen, env);
          this.ticksPerAnimalSpawns = this.getServer().getTicksPerAnimalSpawns(); // CraftBukkit
 diff --git a/src/main/java/org/bukkit/craftbukkit/CraftServer.java b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
-index 77cb857989..46a9ff9482 100644
+index d7b516698e..540126c31f 100644
 --- a/src/main/java/org/bukkit/craftbukkit/CraftServer.java
 +++ b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
 @@ -0,0 +0,0 @@ public final class CraftServer implements Server {