Add test shards 1-3/3 for Mizo (lus)

data/test-00000-of-00003.parquet

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:1201ef0cccf274cb67f6671b6e9766e51915412ab1c177d00fe5896af1373825
+size 100397355

data/test-00001-of-00003.parquet

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:30509c62e658ed3f742a7ffddbf3ab75b1fc6e8218aa37139b9677dca9a4f16a
+size 101860059

data/test-00002-of-00003.parquet

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:dfeddc24769571093e0f2870276b87a35ff5b70ebab91602bc54124875e664f4
+size 43698892