Update duckdb index files

mtc--cnn_dm_paraphrase_10k/train/index.duckdb

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:b1ec143cb35fa5c7a5c3271c0271139fbe5ea754ad39617587e63c175eb4599d
-size 5255168
+oid sha256:ba9adee09ea6188081a400c1592455395049efaec8264ab94870e10fe736b6bc
+size 5517312