Update duckdb index files

.gitattributes

@@ -54,3 +54,4 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 *.jpeg filter=lfs diff=lfs merge=lfs -text
 *.webp filter=lfs diff=lfs merge=lfs -text
 sudy-super--dialogsum-ja/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
+sudy-super--dialogsum-ja/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

sudy-super--dialogsum-ja/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:a41624ae5c4d811ff6cbc69d111201a24e70de23155f276c3abb232732467a5b
+size 28848128