Update duckdb index files

.gitattributes

@@ -299,3 +299,4 @@ cs_th/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 cs_th/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
 cs_tr/sampled_test/index.duckdb filter=lfs diff=lfs merge=lfs -text
 cs_tr/sampled_validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
+cs_tr/test/index.duckdb filter=lfs diff=lfs merge=lfs -text

cs_tr/test/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:2c895a763454b7b9bf3a681cd84a1c5a066622b14844833bb7c71a50352797e6
+size 19673088