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
 krenerd--korean-newstext-dump/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
+krenerd--korean-newstext-dump/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

krenerd--korean-newstext-dump/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:a1896b43a9f9bdc964e608ea29b55ee486ba8743a02b57f5e04b5826e201eff1
+size 237776896