[Docs] Update link of registry tutorial (#2442)

Registry docs are now under Advanced Tutorials.

Author: pd-michaelstanley

mmdet3d/utils/setup_env.py

@@ -64,7 +64,7 @@ def register_all_modules(init_default_scope: bool = True) -> None:
             When `init_default_scope=True`, the global default scope will be
             set to `mmdet3d`, and all registries will build modules from mmdet3d's
             registry node. To understand more about the registry, please refer
-            to https://github.com/open-mmlab/mmengine/blob/main/docs/en/tutorials/registry.md
+            to https://github.com/open-mmlab/mmengine/blob/main/docs/en/advanced_tutorials/registry.md
             Defaults to True.
     """  # noqa
     import mmdet3d.datasets  # noqa: F401,F403