Update duckdb index files

.gitattributes

@@ -172,3 +172,4 @@ dpr-first-15%-maxlen-300/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 dpr-first-15%-maxlen-300/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
 dpr-first-20%-maxlen-150/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 dpr-first-20%-maxlen-150/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
+dpr-first-20%-maxlen-150/test/index.duckdb filter=lfs diff=lfs merge=lfs -text

dpr-first-20%-maxlen-150/test/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:d00ab3660a5f1b5d24f058ef681faab9c553de0b3263ba8b24a47016af99dd45
+size 3420160