Update duckdb index files

.gitattributes

@@ -81,3 +81,4 @@ sw/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 ta/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 tn/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 ts/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
+ur/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

ur/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:bb8c0587cdd8a4511505a95c45e025cab3049f0ee8c73e7333db4948a2185c32
+size 957362176