Update duckdb index files

.gitattributes

@@ -386,3 +386,4 @@ default/eo.validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
 default/en.test/index.duckdb filter=lfs diff=lfs merge=lfs -text
 default/bg.validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
 default/es.train/index.duckdb filter=lfs diff=lfs merge=lfs -text
+default/es.validation/index.duckdb filter=lfs diff=lfs merge=lfs -text

default/es.validation/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:aff21834768af3c7cb55ff62c1fd2bdd06c692d309bd9b17a415ff2b49408295
+size 13119488