Use username instead of display name in PlayerList#getPlayerStats

paper-server/patches/sources/net/minecraft/server/players/PlayerList.java.patch

@@ -1154,7 +1154,7 @@
 +    // CraftBukkit start
 +    public ServerStatsCounter getPlayerStats(ServerPlayer entityhuman) {
 +        ServerStatsCounter serverstatisticmanager = entityhuman.getStats();
-+        return serverstatisticmanager == null ? this.getPlayerStats(entityhuman.getUUID(), entityhuman.getDisplayName().getString()) : serverstatisticmanager;
++        return serverstatisticmanager == null ? this.getPlayerStats(entityhuman.getUUID(), entityhuman.getGameProfile().getName()) : serverstatisticmanager; // Paper - use username and not display name
 +    }
  
 +    public ServerStatsCounter getPlayerStats(UUID uuid, String displayName) {