Update duckdb index files

.gitattributes

@@ -10,3 +10,4 @@ zpn--pcba_686978/test/0000.parquet filter=lfs diff=lfs merge=lfs -text
 default/train/0000.parquet filter=lfs diff=lfs merge=lfs -text
 default/validation/0000.parquet filter=lfs diff=lfs merge=lfs -text
 default/test/0000.parquet filter=lfs diff=lfs merge=lfs -text
+default/test/index.duckdb filter=lfs diff=lfs merge=lfs -text

default/test/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:b72b84dccd59d4da1a87491454ae417ddd39a7b776c85b9263cefca23a821f02
+size 8663040