Update parquet files

ioclab--grayscale_image_6k/{parquet-train-00000-of-00002.parquet → train/0000.parquet}

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:64699c9f2e21ecd8e9c75cdbbf43003918f6dbbbf7f419a32243348fd2588c2c
-size 871110699
+oid sha256:2a55023b8b67266fa22d73237926af424ad23e0b0bf205a73e06c19e61fdf1f9
+size 435517399

ioclab--grayscale_image_6k/{parquet-train-00001-of-00002.parquet → train/0001.parquet}

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:8b29a0341f189991217cf744514309a8a0667a41b5c6f2b1da2b3d5e2b0b887a
-size 433230470
+oid sha256:3163895010746c032c0e9607435b79c2fd946c947a80a28e5d1989aad70b4833
+size 435571436

ioclab--grayscale_image_6k/train/0002.parquet

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:eb3a5f86a460d411eebd1bd79c367daed9c546642ee7b8c4f3a5881acb4f2298
+size 433082760