fix: switch to 3d where 2d biomes still remain in a couple of places (#2816)

worldedit-core/src/main/java/com/fastasyncworldedit/core/extent/FaweRegionExtent.java

@@ -101,7 +101,7 @@ public abstract class FaweRegionExtent extends ResettableExtent implements IBatc
 
     @Override
     public BiomeType getBiomeType(int x, int y, int z) {
-        if (!contains(x, z)) {
+        if (!contains(x, y, z)) {
             if (!limit.MAX_FAILS()) {
                 WEManager.weManager().cancelEditSafe(this, FaweCache.OUTSIDE_REGION);
             }

worldedit-core/src/main/java/com/fastasyncworldedit/core/extent/TransformExtent.java

@@ -93,7 +93,7 @@ public class TransformExtent extends BlockTransformExtent {
     @Override
     public BiomeType getBiomeType(int x, int y, int z) {
         BlockVector3 p = getPos(x, y, z);
-        return super.getBiomeType(p.x(), y, p.z());
+        return super.getBiomeType(p.x(), p.y(), p.z());
     }
 
     @Override