Update duckdb index files

.gitattributes

@@ -102,3 +102,4 @@ iwslt2017-ro-en/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 iwslt2017-ro-en/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
 iwslt2017-ro-en/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
 iwslt2017-ro-it/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
+iwslt2017-ro-it/test/index.duckdb filter=lfs diff=lfs merge=lfs -text

iwslt2017-ro-it/test/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:68ba2abcf755b0cfc77606ffc90aba63c5a17e4c9910c2f21f9ef641fd32ed1f
+size 1060864