Update duckdb index files

.gitattributes

@@ -39,3 +39,4 @@ ar_cs/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 ar_es/sampled_validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
 ar_id/sampled_validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
 ar_hi/sampled_validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
+ar_fr/sampled_test/index.duckdb filter=lfs diff=lfs merge=lfs -text

ar_fr/sampled_test/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:839d01d69afa2caf3425f801856860245fcb16e699e5598994dbedf5992d6d8d
+size 69218304