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
+felixdae--openwebtext-wordlength/test/index.duckdb filter=lfs diff=lfs merge=lfs -text

felixdae--openwebtext-wordlength/test/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:b56145433213bfebfe9041979be04e0221b7b051423322d5d2d84d26e58cbc4c
+size 7090176