fix: load worldgen from vanilla data pack

Author: vberlier

beet/contrib/vanilla.py

@@ -28,6 +28,7 @@
     ResourcePack,
     UnveilMapping,
 )
+from beet.contrib.worldgen import worldgen
 from beet.core.utils import FileSystemPath, log_time
 
 MANIFEST_URL: str = "https://piston-meta.mojang.com/mc/game/version_manifest_v2.json"
@@ -52,6 +53,7 @@ def __init__(self, cache: Cache, path: FileSystemPath):
         self.path = Path(path)
         self.assets = ResourcePack()
         self.data = DataPack()
+        worldgen(self.data)
 
     def mount(
         self,