Update duckdb index files

.gitattributes

@@ -328,3 +328,4 @@ somali/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
 somali/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 somali/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
 spanish/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
+spanish/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text

spanish/validation/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:a1a3d360de4bd95074aaf15116420635e98a750fd31b53ab9141bf1705139d8a
+size 44052480