Update duckdb index files

.gitattributes

@@ -1,3 +1,4 @@
 9LSMai--images/imagefolder-train.parquet filter=lfs diff=lfs merge=lfs -text
 9LSMai--images/train/0000.parquet filter=lfs diff=lfs merge=lfs -text
 default/train/0000.parquet filter=lfs diff=lfs merge=lfs -text
+default/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

default/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:7362df2b6da118a52ef161fc7a6d29082be15a2202a4ab4f2987c5c78a3ed398
+size 6041600