Update duckdb index files

.gitattributes

@@ -6,3 +6,4 @@ en/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
 en/test/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:f11b545576f4aea7a69f33af0a62e9d55f955e54ad43c5f8e59383fd19c08bff
+size 1323008