Update duckdb index files

.gitattributes

@@ -55,3 +55,4 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 test.csv filter=lfs diff=lfs merge=lfs -text
 train.csv filter=lfs diff=lfs merge=lfs -text
 valid.csv filter=lfs diff=lfs merge=lfs -text
+wza--USTT/test/index.duckdb filter=lfs diff=lfs merge=lfs -text

wza--USTT/test/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:2ea3ae4c9c59274fb38d08fe1ca5f6efb675c057030f5bd5d19e5fb96c2bdfc9
+size 10498048