Update duckdb index files

.gitattributes

@@ -36,3 +36,4 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 *.ogg filter=lfs diff=lfs merge=lfs -text
 *.wav filter=lfs diff=lfs merge=lfs -text
 nickmuchi--trade-the-event-finance/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
+nickmuchi--trade-the-event-finance/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

nickmuchi--trade-the-event-finance/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:60bb73dc5b26df71c23d52d7e7bbafb2677988ca6f2b112e4ce99802d6fe8c6d
+size 1792290816