Update duckdb index files

.gitattributes

@@ -55,3 +55,4 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 eli5.original-split/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
 eli5.original-split/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 gooaq.original-split/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
+gooaq.original-split/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text

gooaq.original-split/validation/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:6fdb761f4ebdf85e7802898bdf37e5dfe4eadfcc6c9fc212b92d438301a35baa
+size 1060864