Update duckdb index files

.gitattributes

@@ -62,3 +62,4 @@ en/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 en/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
 es/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
 es/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
+es/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text

es/validation/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:57f384dd3441360fc372b965895c43aae8e7d4b3513484b76c4355a66927c463
+size 1323008