explicitly set serialized name post obf

src/api/java/baritone/api/utils/MyChunkPos.java

@@ -17,11 +17,15 @@
 
 package baritone.api.utils;
 
+import com.google.gson.annotations.SerializedName;
+
 /**
  * Need a non obfed chunkpos that we can load using GSON
  */
 public class MyChunkPos {
+    @SerializedName("x")
     public int x;
+    @SerializedName("y")
     public int z;
 
     @Override