Update duckdb index files

.gitattributes

@@ -200,3 +200,4 @@ tatoeba.vie/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
 tydiqa/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 tydiqa/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
 MLQA.en.vi/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
+MLQA.en.vi/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text

MLQA.en.vi/validation/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:a0622914d93adb21453ec6661b063ac7e132f66859127020efd9e7be6645ddb7
+size 2371584