The `random_neighbor_spread` feature has a field misspelled as "xy_offset"

According to the changelog, the field should be xz_offset.

The current definition in RandomNeighborSpreadFeature uses xy_offset:

public static final MapCodec<RandomNeighborSpreadFeature> CODEC = RecordCodecBuilder.mapCodec(
  i -> i.group(
    // ...
    IntProviders.codec(-16, 16).fieldOf("xy_offset").forGetter(RandomNeighborSpreadFeature::xzOffset),
    // ...
  )
  .apply(i, RandomNeighborSpreadFeature::new)
);