Update duckdb index files

.gitattributes

@@ -60,3 +60,4 @@ cs-de/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 cs-da/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 cs-el/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 cs-en/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
+cs-es/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

cs-es/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:c0dcb5650ff1efd75459fa6f5ce628f4467cd2db692ff0b28e8afed74b94d91e
+size 45363200