Update duckdb index files

.gitattributes

@@ -97,3 +97,4 @@ es_de/sampled_test/index.duckdb filter=lfs diff=lfs merge=lfs -text
 es_ja/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
 ar_ru/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
 es_de/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
+ar/sampled_test/index.duckdb filter=lfs diff=lfs merge=lfs -text

ar/sampled_test/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:a866655a16442954f93b861c9df86b9f5b634957c6698447d2b1ec18d67789ac
+size 12070912