Update duckdb index files

.gitattributes

@@ -52,3 +52,4 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 *.jpg filter=lfs diff=lfs merge=lfs -text
 *.jpeg filter=lfs diff=lfs merge=lfs -text
 *.webp filter=lfs diff=lfs merge=lfs -text
+izumi-lab--llm-japanese-dataset-vanilla/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

izumi-lab--llm-japanese-dataset-vanilla/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:2a299c08376742c3b684f2ce793051817c0344734b42eb1d587e699a52e38335
+size 961294336