Fix TPSSystem in 1.21 and beyond

BauSystem/BauSystem_Main/src/de/steamwar/bausystem/features/tpslimit/TPSSystem.java

@@ -38,6 +38,7 @@ import de.steamwar.inventory.SWAnvilInv;
 import de.steamwar.inventory.SWItem;
 import de.steamwar.linkage.Linked;
 import de.steamwar.linkage.LinkedInstance;
+import de.steamwar.linkage.MaxVersion;
 import lombok.Getter;
 import org.bukkit.Bukkit;
 import org.bukkit.Material;
@@ -51,6 +52,7 @@ import org.bukkit.inventory.ItemStack;
 import java.util.Arrays;
 
 @Linked
+@MaxVersion(20) // Hotfix for 1.21 tps limit! -> Backport coming later
 public class TPSSystem implements Listener {
 
     @Getter