feat: Enable recursive search of HFFS.ls when using from_pretrained (…

…#1656)

Enable rercursive ls for hffs. Otherwise models in subfolder wouldn't be found.

Co-authored-by: Andrei <abetlen@gmail.com>

llama_cpp/llama.py

@@ -2160,7 +2160,7 @@ def from_pretrained(
 
         files = [
             file["name"] if isinstance(file, dict) else file
-            for file in hffs.ls(repo_id)
+            for file in hffs.ls(repo_id, recursive=True))
         ]
 
         # split each file into repo_id, subfolder, filename