Update duckdb index files

.gitattributes

@@ -103,3 +103,4 @@ fi/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 fy/valid/index.duckdb filter=lfs diff=lfs merge=lfs -text
 fr/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 fr/valid/index.duckdb filter=lfs diff=lfs merge=lfs -text
+default/valid/index.duckdb filter=lfs diff=lfs merge=lfs -text

default/{validation → valid}/index.duckdb

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:21459654fca032d27c8c429ef019d3b50f29a7b4c9ae31e060e98fb55929bd57
+oid sha256:b7eff391c540353893307b2f32f0711fd3ac6e5146f1ac00c69b06b7e7b99395
 size 29634560