Update duckdb index files

.gitattributes

@@ -52,3 +52,4 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 *.jpg filter=lfs diff=lfs merge=lfs -text
 *.jpeg filter=lfs diff=lfs merge=lfs -text
 *.webp filter=lfs diff=lfs merge=lfs -text
+lingtrain--buryat-russian/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

lingtrain--buryat-russian/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:96d909ec89abbca5a2b0acdcafaa9f4fc25c607233001f5c917835867b8ae2a2
+size 2633728