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
 Joanne--katz1980_lexical/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
 Joanne--katz1980_lexical/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
+Joanne--katz1980_lexical/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text

Joanne--katz1980_lexical/validation/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:656e87bdbd9213643623ed0fcf59dcd83482958a58e5773689fba2612add0792
+size 1060864