Update parquet files

graphs-datasets--MNIST/parquet-test.parquet

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:b63fa00fea97b20300f1cd7408c06e0f7ceaa8dde640323c687542aa488e30ee
-size 18011063
+oid sha256:61423d9689991ddccc0ffaa1a1b2fca33cd919ab3f611f534109d0732cbaa65e
+size 18011064

graphs-datasets--MNIST/parquet-train-00000-of-00002.parquet

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:32510525b4cc819f9e59a2735d96259a9371796055f7b66f9f88fbc46f85e649
-size 49573189
+oid sha256:3400edb6da67b76e8b8e0a73e8cb89f369232e17c0a0194b0ada2a6a3c6d9f98
+size 49573190

graphs-datasets--MNIST/parquet-train-00001-of-00002.parquet

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:230be0bc7e198c10385316a5b10a7a566dff5528d4438ecf3334c4b45b6e7f20
-size 49609635
+oid sha256:404ee577763a91cabb7db8a96508b63507a91710952d7c617a702277d121a001
+size 49609636

graphs-datasets--MNIST/parquet-val.parquet

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:ba23990b6a45020f3a6f1cd827aa7bea01087150eb7b0c5e94544b89e73e352a
-size 9030331
+oid sha256:4ce2cc468ac1828f4df7780a65dd3e3c4b6f23dc0a70baf709a1ce19235c5e44
+size 9030332