Update duckdb index files

.gitattributes

@@ -18,3 +18,4 @@ ko/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
 hu/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
 ru/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
 ta/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
+vi/test/index.duckdb filter=lfs diff=lfs merge=lfs -text

vi/test/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:1d43c5c60e65328246eaa779bf8d7d724527b4300ab4e1f28639b3c46b36733e
+size 1060864