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
 ebrigham--nl-transportation-reviews-csat/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
+ebrigham--nl-transportation-reviews-csat/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

ebrigham--nl-transportation-reviews-csat/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:4def27626c9ef2e7bb24b8ed090a39121fa77dfb94cd4ebb5e187c1b82657449
+size 3420160