Update duckdb index files

.gitattributes

@@ -75,3 +75,4 @@ transcribe_nl/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 translate_nl/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 transcribe_pl/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 translate_pl/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
+transcribe_ro/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

transcribe_ro/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:f029fcfd8936971f1c5b47ad9499b19084fb56ecedb53942b9160a101be384ca
+size 307507200