Update duckdb index files

.gitattributes

@@ -1,3 +1,4 @@
 Inked--Peter/imagefolder-train.parquet filter=lfs diff=lfs merge=lfs -text
 Inked--Peter/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 sha256:7c88391e08967d76fd2e2ce91267e679279e9730d1a34cd887e76946297e8ea4
+size 6041600