Update duckdb index files

.gitattributes

@@ -52,3 +52,4 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 *.jpg filter=lfs diff=lfs merge=lfs -text
 *.jpeg filter=lfs diff=lfs merge=lfs -text
 *.webp filter=lfs diff=lfs merge=lfs -text
+iwslt2017-de-en/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

iwslt2017-de-en/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:08e504d2e368530946aabf39f0895e8fb1d9958bf884ddcedc9787223a692ef1
+size 23080960