Update duckdb index files

.gitattributes

@@ -187,3 +187,4 @@ dpr-first-0%-maxlen-300/validation/index.duckdb filter=lfs diff=lfs merge=lfs -t
 dpr-first-0%-maxlen-300/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
 dpr-first-20%-maxlen-500/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 dpr-first-20%-maxlen-500/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
+dpr-first-20%-maxlen-500/test/index.duckdb filter=lfs diff=lfs merge=lfs -text

dpr-first-20%-maxlen-500/test/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:474ec4ce9c17e66677265356e292d8b9d4efbdb046a7bca6cb845d0d1bcab055
+size 7614464