Update duckdb index files

.gitattributes

@@ -80,3 +80,4 @@ translate_ro/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 transcribe_sk/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 translate_sk/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 transcribe_sl/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
+translate_sl/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

translate_sl/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:2962d3104722ff1aad1c953859f024acfbf5bb6aec0d90a2bac4d086143ef980
+size 273952768