Update duckdb index files

.gitattributes

@@ -65,3 +65,4 @@ utterance_embeddings/cmu_arctic/index.duckdb filter=lfs diff=lfs merge=lfs -text
 utterance_embeddings/aru/index.duckdb filter=lfs diff=lfs merge=lfs -text
 datasets/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 speaker_embeddings/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
+dataset_utterances/aru/index.duckdb filter=lfs diff=lfs merge=lfs -text

dataset_utterances/aru/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:0bcb08a514f64460838fb9a99da58ae6cc5ffe5e710af8240a94ef539b963bd2
+size 1060864