Update duckdb index files

.gitattributes

@@ -55,3 +55,4 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 *.webp filter=lfs diff=lfs merge=lfs -text
 fernandals--UFRN-posts/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
 fernandals--UFRN-posts/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
+fernandals--UFRN-posts/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

fernandals--UFRN-posts/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:80b5a5025c2b8bb8e5d9a2082d215b3f998fc2bd2c39150114641c442025e83e
+size 319041536