Update duckdb index files

.gitattributes

@@ -190,3 +190,4 @@ dpr-first-20%-maxlen-500/validation/index.duckdb filter=lfs diff=lfs merge=lfs -
 dpr-first-20%-maxlen-500/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
 dpr-first-30%-maxlen-400/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 dpr-first-30%-maxlen-400/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
+dpr-first-30%-maxlen-400/test/index.duckdb filter=lfs diff=lfs merge=lfs -text

dpr-first-30%-maxlen-400/test/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:bfecb0c06d7d3ec8141584ea0408a367cedefd9862a72eaa240c1128b6a646f9
+size 6828032