Update duckdb index files

.gitattributes

@@ -5,3 +5,4 @@ shipmaal--frames/train/0000.parquet filter=lfs diff=lfs merge=lfs -text
 shipmaal--frames/train/0001.parquet filter=lfs diff=lfs merge=lfs -text
 default/train/0000.parquet filter=lfs diff=lfs merge=lfs -text
 default/train/0001.parquet filter=lfs diff=lfs merge=lfs -text
+default/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

default/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:9eccf31857e12f7b5cc955fa278472b13fca7ea521e1d6de6ab19a1e89e0546a
+size 721956864