Update duckdb index files

.gitattributes

@@ -71,3 +71,4 @@ transcribe_hu/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 translate_hu/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 transcribe_it/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 translate_it/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
+transcribe_nl/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

transcribe_nl/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:8078413d177c513e0b4ea0f4518088f0fa411bafde0078c357d8f1c7dc166ca0
+size 212873216