Update duckdb index files

.gitattributes

@@ -17,3 +17,4 @@
 *.json filter=lfs diff=lfs merge=lfs -text
 gabtan99--pex-conversations/json-train.parquet filter=lfs diff=lfs merge=lfs -text
 gabtan99--pex-conversations/train/0000.parquet filter=lfs diff=lfs merge=lfs -text
+gabtan99--pex-conversations/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

gabtan99--pex-conversations/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:7171dd6c858dea9c29b0b0f79502d917f02a343fa65dd667b09eda2eda9ed4b5
+size 868495360