Update duckdb index files

.gitattributes

@@ -103,3 +103,4 @@ t+tc/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
 fm+fc+c+m+f/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
 fm+fc+c+m+f+t+tc/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
 fm+fc+c+m+f+t+tc/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
+fm+fc+c+m+f+t+tc/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

fm+fc+c+m+f+t+tc/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:fb396d6b5392a819fd55e66a3c78f0f71ea1db185abe0504516fe4b7a8589cdc
+size 40120320