Update parquet files

gaussian1.0_grid64/test/0000.parquet

@@ -1,3 +1,3 @@
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-size 19869734
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+size 634

gaussian1.0_grid64/train/0000.parquet

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:c4a3d637c7974ba811d2d12aac821f1002263f0f772b021360f8b290fa38cddd
-size 99342177
+oid sha256:48bc95e55dd2b2eb1f2dd79d815395a143710b785141d7840b304e8a55f1e1cc
+size 634