Update duckdb index files

.gitattributes

@@ -270,3 +270,4 @@ cs_fr/sampled_validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
 cs_fr/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
 cs_fr/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
 cs_id/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
+cs_id/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text

cs_id/validation/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:23ec9cf75fbd86c5bfce7e34c1f3812e9dd579964ab607efab4dde994a18253e
+size 48246784