Update duckdb index files

.gitattributes

@@ -54,3 +54,4 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 *.webp filter=lfs diff=lfs merge=lfs -text
 nflechas--semantic_sentence_similarity_ES/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 nflechas--semantic_sentence_similarity_ES/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
+nflechas--semantic_sentence_similarity_ES/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text

nflechas--semantic_sentence_similarity_ES/validation/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:ac5e6446cc7eb244fbd78af09164c90c5482917cd28b8f7e51461e4a1c14c0e9
+size 1060864