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
+intertwine-expel--knowledge-base/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

intertwine-expel--knowledge-base/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:2b06f50604dbd473c525b34074de39bd020cd9d4168d39b0a0030932ff479f50
+size 1585152