Update duckdb index files

.gitattributes

@@ -53,3 +53,4 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 *.jpeg filter=lfs diff=lfs merge=lfs -text
 *.webp filter=lfs diff=lfs merge=lfs -text
 Dahoas--filtered-SHP/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
+Dahoas--filtered-SHP/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

Dahoas--filtered-SHP/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:77007568fd3a634cb52b01f02f5f37e5061e5c51caeff5fc467cf048fac3d2b2
+size 348663808