Update duckdb index files

.gitattributes

@@ -50,3 +50,4 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 *.jpeg filter=lfs diff=lfs merge=lfs -text
 *.webp filter=lfs diff=lfs merge=lfs -text
 allenai--ms2_sparse_oracle/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
+allenai--ms2_sparse_oracle/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text

allenai--ms2_sparse_oracle/validation/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:7f555ff4f5af786a2ac43e12262ff203a655c37a8bdcd8bd12cccfbb485610b3
+size 175124480