Update duckdb index files

.gitattributes

@@ -66,3 +66,4 @@ naturalquestions.original-split/train/index.duckdb filter=lfs diff=lfs merge=lfs
 naturalquestions.original-split/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
 newsqa.original-split/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 newsqa.original-split/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
+newsqa.random-split/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

newsqa.random-split/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:0f69b747f49e3ecb7a38a9c93665a4aed9e0828af4f489e33df624effcfb4cef
+size 8925184