Do not use worldgen executor for api profile completions

We cannot put blocking network I/O onto the worldgen threads,
this will crash the server if it stalls

patches/server/0404-Expose-game-version.patch

@@ -0,0 +1,24 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Mark Vainomaa <mikroskeem@mikroskeem.eu>
+Date: Fri, 1 May 2020 17:39:26 +0300
+Subject: [PATCH] Expose game version
+
+
+diff --git a/src/main/java/org/bukkit/craftbukkit/CraftServer.java b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
+index cd5a34fdd086d5b9d59897cc4319fe81ccdfebcc..22d9196d190bcf12ecea5cc3df8945277607b0a2 100644
+--- a/src/main/java/org/bukkit/craftbukkit/CraftServer.java
++++ b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
+@@ -575,6 +575,13 @@ public final class CraftServer implements Server {
+         return this.bukkitVersion;
+     }
+ 
++    // Paper start - expose game version
++    @Override
++    public String getMinecraftVersion() {
++        return console.getServerVersion();
++    }
++    // Paper end
++
+     @Override
+     public List<CraftPlayer> getOnlinePlayers() {
+         return this.playerView;