Update duckdb index files

.gitattributes

@@ -53,3 +53,4 @@ 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
 rcp-meetings--rudialogsum_v2/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
+rcp-meetings--rudialogsum_v2/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

rcp-meetings--rudialogsum_v2/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:ec271c8b6703343dba23b1bb3b97db3172764704a5b3c53c920374b784d79dda
+size 32780288