Update duckdb index files

.gitattributes

@@ -53,3 +53,4 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 *.jpg filter=lfs diff=lfs merge=lfs -text
 *.jpeg filter=lfs diff=lfs merge=lfs -text
 *.webp filter=lfs diff=lfs merge=lfs -text
+honnuanand--langchain-python-integrations/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

honnuanand--langchain-python-integrations/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:d72ec1f2c26bf968acdd2cd34ddb05bef770ba9f31b02dedd68574440a9826e6
+size 4468736