Update duckdb index files

.gitattributes

@@ -61,3 +61,4 @@ cs-da/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 cs-el/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 cs-en/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 cs-es/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
+cs-et/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

cs-et/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:fce020479ed50c37a3252f582089f51278dfff8100ee088538a28b0a26337e41
+size 42217472