Fixed download uri to get the latest dataset

version.

Author: ErnstRoell

mantra/simplicial.py

@@ -48,7 +48,7 @@ def __init__(
         self.manifold = manifold
         root += f"/simplicial"
         self.version = version
-        self.url = f"https://github.com/aidos-lab/MANTRADataset/releases/download/{self.version}/{self.manifold}_manifolds.json.gz"
+        self.url = f"https://github.com/aidos-lab/MANTRADataset/releases/{self.version}/download/{self.manifold}_manifolds.json.gz"
         super().__init__(root, transform, pre_transform, pre_filter)
         self.load(self.processed_paths[0])