Update duckdb index files

.gitattributes

@@ -78,3 +78,4 @@ cs-sl/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 cs-sv/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 da-de/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 da-el/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
+da-en/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

da-en/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:535795a44168f779da23632b3b0aae32df589660552d7778af63dfdb3bc8e6eb
+size 40120320