Update duckdb index files

.gitattributes

@@ -55,3 +55,4 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 *.webp filter=lfs diff=lfs merge=lfs -text
 blackhc--SteamSHP_formatted/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
 blackhc--SteamSHP_formatted/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
+blackhc--SteamSHP_formatted/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

blackhc--SteamSHP_formatted/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:7237a3eba5f6abd2d8fddd41b040fc89613eed92e31abb528737f711258c3a4d
+size 126627840