Update duckdb index files

.gitattributes

@@ -65,3 +65,4 @@ RomanCast--WikiSpell_custom/test_1_10/index.duckdb filter=lfs diff=lfs merge=lfs
 RomanCast--WikiSpell_custom/test_20_30/index.duckdb filter=lfs diff=lfs merge=lfs -text
 RomanCast--WikiSpell_custom/test_bottom50/index.duckdb filter=lfs diff=lfs merge=lfs -text
 default/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
+default/validation_top1/index.duckdb filter=lfs diff=lfs merge=lfs -text

default/validation_top1/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:063ab93a91698934e68e889422f713bc5c699bc9054da5ecfd85633bf568dd56
+size 1060864