Update duckdb index files

.gitattributes

@@ -60,3 +60,4 @@ sem-eval-2014/valid/index.duckdb filter=lfs diff=lfs merge=lfs -text
 2016-restaurant-sem-eval/test/0000.parquet filter=lfs diff=lfs merge=lfs -text
 2015-restaurant-aste-v2/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 2015-restaurant-aste-v2/valid/index.duckdb filter=lfs diff=lfs merge=lfs -text
+2015-restaurant-sem-eval/test/index.duckdb filter=lfs diff=lfs merge=lfs -text

2015-restaurant-sem-eval/test/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:0c069b01918475552ca9ba91f78c1ac32012cfae2fd91b6f1fd169a09ce5f7f4
+size 1060864