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
+maximalmargin--katz/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

maximalmargin--katz/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:dd29d06f2966ece09e28fd5c6a2b3b420d34247c66c87253320eb12d66da2152
+size 2633728