Update duckdb index files

.gitattributes

@@ -56,3 +56,4 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 default/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 pulled/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 quotes/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
+vanilla/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

vanilla/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:f24633f3734e00ca049debd9144b3e8cc649b85bd08ddd8bdb7cad4ceff256bf
+size 3158016