Update duckdb index files

.gitattributes

@@ -66,3 +66,4 @@ cs-fi/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 cs-fr/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 cs-hu/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 cs-it/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
+cs-lt/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

cs-lt/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:fc69f823f4bad654592af4d33867aa8fdc139f6e023d8ef6f42e39dfd3669043
+size 43790336