fix items not being able to be placed on ancient altar (#4094)

Co-authored-by: Daniel Walsh <[email protected]>

src/main/java/io/github/thebusybiscuit/slimefun4/utils/ArmorStandUtils.java

@@ -2,6 +2,8 @@
 
 import javax.annotation.Nonnull;
 
+import io.github.thebusybiscuit.slimefun4.api.MinecraftVersion;
+import io.github.thebusybiscuit.slimefun4.implementation.Slimefun;
 import org.bukkit.Location;
 import org.bukkit.entity.ArmorStand;
 
@@ -47,13 +49,22 @@ public class ArmorStandUtils {
      * @return The spawned {@link ArmorStand}
      */
     public static @Nonnull ArmorStand spawnArmorStand(@Nonnull Location location) {
-        return location.getWorld().spawn(location, ArmorStand.class, armorStand -> {
-            armorStand.setVisible(false);
-            armorStand.setSilent(true);
-            armorStand.setMarker(true);
-            armorStand.setGravity(false);
-            armorStand.setBasePlate(false);
-            armorStand.setRemoveWhenFarAway(false);
-        });
+        // 1.19 and below don't have the consumer method so flicker exists on these versions.
+        if (Slimefun.getMinecraftVersion().isBefore(MinecraftVersion.MINECRAFT_1_20)) {
+            ArmorStand armorStand = location.getWorld().spawn(location, ArmorStand.class);
+            setupArmorStand(armorStand);
+            return armorStand;
+        }
+
+        return location.getWorld().spawn(location, ArmorStand.class, armorStand -> setupArmorStand(armorStand));
+    }
+
+    private static void setupArmorStand(ArmorStand armorStand) {
+        armorStand.setVisible(false);
+        armorStand.setSilent(true);
+        armorStand.setMarker(true);
+        armorStand.setGravity(false);
+        armorStand.setBasePlate(false);
+        armorStand.setRemoveWhenFarAway(false);
     }
 }