Update duckdb index files

.gitattributes

@@ -52,3 +52,4 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 *.jpg filter=lfs diff=lfs merge=lfs -text
 *.jpeg filter=lfs diff=lfs merge=lfs -text
 *.webp filter=lfs diff=lfs merge=lfs -text
+tasksource--robustLR/test/index.duckdb filter=lfs diff=lfs merge=lfs -text

tasksource--robustLR/test/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:d9b857cd58c5730cd5dad4961e6e4d1506f460dfb4b97a42f6ff8ef261b52a86
+size 3944448