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
+AigizK--mari-russian-parallel-corpora/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

AigizK--mari-russian-parallel-corpora/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:321a45c2dfd8b46209db0657c4dbb0f9cd58718e5c9e9ff4df59c27dab5cbb7e
+size 35139584