Update duckdb index files

.gitattributes

@@ -57,3 +57,4 @@ default/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 default/automotive/index.duckdb filter=lfs diff=lfs merge=lfs -text
 default/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
 default/pets/index.duckdb filter=lfs diff=lfs merge=lfs -text
+default/electronics/index.duckdb filter=lfs diff=lfs merge=lfs -text

default/electronics/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:fbbf85d9a5e0585d987706098f922f4081812ef03223b6d89ad00d25a0c6eeb4
+size 7352320