Update duckdb index files

.gitattributes

@@ -36,3 +36,4 @@ ar_en/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
 ar_en/sampled_test/index.duckdb filter=lfs diff=lfs merge=lfs -text
 ar_es/sampled_test/index.duckdb filter=lfs diff=lfs merge=lfs -text
 ar_cs/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
+ar_es/sampled_validation/index.duckdb filter=lfs diff=lfs merge=lfs -text

ar_es/sampled_validation/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:6bd5c14c83ea0d4405fbfbe85f4259b45920937cafc5c1f8c4c6c3bfe4411653
+size 63975424