Update parquet files

poisson_grid128/test/0000.parquet

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:30114e232167308a7820562168e432fbbd58c7db284719c6a42ab9c2ac3ff4a8
-size 52432757
+oid sha256:48bc95e55dd2b2eb1f2dd79d815395a143710b785141d7840b304e8a55f1e1cc
+size 634

poisson_grid128/train/0000.parquet

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:d2d692bd15a0dd944d8f75c08726a3c93e7de0e2c1874b1887296f21d775ea65
-size 262157583
+oid sha256:48bc95e55dd2b2eb1f2dd79d815395a143710b785141d7840b304e8a55f1e1cc
+size 634