[Auto] Updated Upstream (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

CraftBukkit Changes:
75a2fb8e0 SPIGOT-5901: Improve multiworld support

Spigot-Server-Patches/Properly-handle-async-calls-to-restart-the-server.patch

@@ -77,7 +77,7 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 --- a/src/main/java/net/minecraft/server/PlayerList.java
 +++ b/src/main/java/net/minecraft/server/PlayerList.java
 @@ -0,0 +0,0 @@ public abstract class PlayerList {
-         entityplayer.playerInteractManager.b(worldserver.getMinecraftServer().getSaveData().getGameType());
+         entityplayer.playerInteractManager.b(worldserver.worldDataServer.getGameType()); // CraftBukkit
      }
  
 +    // Paper start - Extract method to allow for restarting flag

Spigot-Server-Patches/incremental-chunk-saving.patch

@@ -312,4 +312,4 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 +    private void saveData() { this.ag(); } // Paper - OBFHELPER
      private void ag() {
          if (this.dragonBattle != null) {
-             this.server.getSaveData().a(this.dragonBattle.a());
+             this.worldDataServer.a(this.dragonBattle.a()); // CraftBukkit

work/CraftBukkit

@@ -1 +1 @@
-Subproject commit b0c6dfe1ae6fd5907379ba180851f94f45a8a2da
+Subproject commit 75a2fb8e0be1be0351966f9824648eeb58167b44