Update duckdb index files

.gitattributes

@@ -4,3 +4,4 @@ sudo-s--herbier5/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
 sudo-s--herbier5/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 default/train/0000.parquet filter=lfs diff=lfs merge=lfs -text
 default/test/0000.parquet filter=lfs diff=lfs merge=lfs -text
+default/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

default/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:914fc5f2fb2026a39dedee1973ff92ff00f2432c4f6409ff8aaba726073baa62
+size 668741632