Update duckdb index files

.gitattributes

@@ -52,3 +52,4 @@ 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
+prasanth-balaraman--langchain-docs/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

prasanth-balaraman--langchain-docs/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:ceb0ea5faa09301001c97511898fe88be9fa476519a4471e208eaa3f602a0273
+size 10760192