Update duckdb index files

.gitattributes

@@ -61,3 +61,4 @@ en/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
 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/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:7430f6b43bf3692a0323ec3ff401e0703be361724c9d9420e39c1e9c914ca2b0
+size 2633728