Update duckdb index files

.gitattributes

@@ -55,3 +55,4 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 12ml--e-CARE/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
 12ml--e-CARE/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 default/validation/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:e63fe98c0edc475d3697bb0c98da2e34806d80e53d969134cd7a3b848b43c729
+size 4993024