Incompatibility with Sphinx 9?

[benbovy]

A recent build failed using Sphinx version 9 with the following traceback:

    Traceback (most recent call last):
      File "/Users/bbovy/Git/github/benbovy/xoak/.pixi/envs/default/lib/python3.13/site-packages/sphinx/config.py", line 597, in eval_config_file
        exec(code, namespace)  # NoQA: S102
        ~~~~^^^^^^^^^^^^^^^^^
      File "/Users/bbovy/Git/github/benbovy/xoak/doc/conf.py", line 18, in <module>
        import sphinx_autosummary_accessors
      File "/Users/bbovy/Git/github/benbovy/xoak/.pixi/envs/default/lib/python3.13/site-packages/sphinx_autosummary_accessors/__init__.py", line 6, in <module>
        from sphinx_autosummary_accessors import autosummary
      File "/Users/bbovy/Git/github/benbovy/xoak/.pixi/envs/default/lib/python3.13/site-packages/sphinx_autosummary_accessors/autosummary.py", line 11, in <module>
        original_create_documenter = Autosummary.create_documenter
                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    AttributeError: type object 'Autosummary' has no attribute 'create_documenter'

The doc build is working fine using Sphinx version 8.x.