Update duckdb index files

.gitattributes

@@ -57,3 +57,4 @@ VLyb--FB15k/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
 VLyb--FB15k/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 VLyb--FB15k/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
 default/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
+default/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

default/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:08c5cfd85be380dbd2b740488ac684a3a7702eccb5557e608c1d09135630edbc
+size 35663872