Update duckdb index files

.gitattributes

@@ -115,3 +115,4 @@ ar_id/sampled_test/index.duckdb filter=lfs diff=lfs merge=lfs -text
 fr/sampled_test/index.duckdb filter=lfs diff=lfs merge=lfs -text
 fr_hi/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
 cs_de/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
+ar_ko/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text

ar_ko/validation/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:3535637790ce57b90d2f90f8734c2a3f1c5d76512114a02879d41b54e75589ab
+size 24391680