Update duckdb index files

.gitattributes

@@ -2,3 +2,4 @@ yoshitomo-matsubara--srsd-feynman_medium/text-train.parquet filter=lfs diff=lfs
 yoshitomo-matsubara--srsd-feynman_medium/text-test.parquet filter=lfs diff=lfs merge=lfs -text
 yoshitomo-matsubara--srsd-feynman_medium/text-validation.parquet filter=lfs diff=lfs merge=lfs -text
 yoshitomo-matsubara--srsd-feynman_medium/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
+yoshitomo-matsubara--srsd-feynman_medium/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

yoshitomo-matsubara--srsd-feynman_medium/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:92a06736830d153ac516b7a616da3d3b5034f8a7e4b79539e0c92b6925cd8d2a
+size 17051648