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
 Yuhthe--vietnews_word/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
 Yuhthe--vietnews_word/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
+Yuhthe--vietnews_word/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

Yuhthe--vietnews_word/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:0a3370eb3635f70116076612cba050e14c777e82e4c81f5a9c170a5be57ff1a1
+size 688402432