Update duckdb index files

.gitattributes

@@ -55,3 +55,4 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 GIZ--sector_data/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
 GIZ--sector_data/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 GIZ--sector_data/validation/index.duckdb 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 sha256:3da7dcf2e8acad62ceb82f13d472a9f41390159de23ea0a6715d4765a06d6736
+size 7352320