Update duckdb index files

.gitattributes

@@ -38,3 +38,4 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 bg-cs/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 bg-da/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 bg-de/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
+bg-el/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

bg-el/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:90c8c597315183c319ca8fe879e72b34148a7b212c1a9dad36d352096bc903ee
+size 129511424