Update duckdb index files

.gitattributes

@@ -54,3 +54,4 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 *.webp filter=lfs diff=lfs merge=lfs -text
 *.tar filter=lfs diff=lfs merge=lfs -text
 clip-benchmark--wds_mnist/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
+clip-benchmark--wds_mnist/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

clip-benchmark--wds_mnist/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:7356ed589cf83220cf3d81dd623c1d681b14134071696b6f793745579e5caae3
+size 1060864