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
 pietrolesci--pubmed-20k-rct/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 pietrolesci--pubmed-20k-rct/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
+pietrolesci--pubmed-20k-rct/test/index.duckdb filter=lfs diff=lfs merge=lfs -text

pietrolesci--pubmed-20k-rct/test/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:8ad67cc9b4a35a9318d79214bb05f674e06b4569e63eb56a8ecea563b1d0b7be
+size 234631168