Update duckdb index files

.gitattributes

@@ -53,3 +53,4 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 *.jpg filter=lfs diff=lfs merge=lfs -text
 *.jpeg filter=lfs diff=lfs merge=lfs -text
 *.webp filter=lfs diff=lfs merge=lfs -text
+hysts-samples--sample-user-preferences/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

hysts-samples--sample-user-preferences/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:5b84d9b0bd569231d93cf4fdec6a42f056087eb107c171d5054d9d9c351055d2
+size 4468736