Update duckdb index files

.gitattributes

@@ -1,2 +1,3 @@
 AhmedSSabir--Japanese-wiki-dump-sentence-dataset/text-train-00000-of-00002.parquet filter=lfs diff=lfs merge=lfs -text
 AhmedSSabir--Japanese-wiki-dump-sentence-dataset/text-train-00001-of-00002.parquet filter=lfs diff=lfs merge=lfs -text
+AhmedSSabir--Japanese-wiki-dump-sentence-dataset/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

AhmedSSabir--Japanese-wiki-dump-sentence-dataset/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:d4484ee15e444657f0428d78a758336a6b8fbbc65bd3d9a6e9789da0cb5d869e
+size 410005504