Update duckdb index files

iwslt2017-ro-it/train/index.duckdb

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:2d87d3e24f9b73b6723f953ad389056ea89d4f3e38a2bf57a61e0f3313049393
-size 24129536
+oid sha256:816805108921d23ce42e6a86529adae924224db24cfc1377db9937a7f3cb00c0
+size 23867392