Update duckdb index files

.gitattributes

@@ -68,3 +68,4 @@ Obstentrics_Williams/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 Physiology_Levy/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 Psichiatry_DSM-5/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 Anatomy_Gray_summary_long/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
+Biochemistry_Lippincott_summary_long/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

Biochemistry_Lippincott_summary_long/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:9ed929dd4b358a62000a900e46ee5eb11ad9eb96a958b5d5059cf5686a305ca6
+size 3682304