Unhandled exception occurred: 'Repository' object has no attribute 'lookup_submodule'

Process completed with exit code 1.

Configuration: Config(github=<GitHub [token ghp_...]>, source_repository=<Repository [planetarium/NineChronicles.Headless]>, ref=<Reference [refs/heads/release/221]>, targets={<Repository [planetarium/NineChronicles.DataProvider]>: <Repository Branch [release/221]>}, committer=pygit2.Signature('Submodule Updater', '[email protected]', 1732796611, 0, None), dry_run=False, pr_title_format='Update {submodule_repository.name} to {submodule_ref_name}', pr_description_format='*This pull request was automatically generated by Submodule Updater.*\n\nIt updates the submodule referring to [*{submodule_repository.name}*]({submodule_repository.html_url}) to {submodule_ref_type} *{submodule_ref_name}* ({submodule_repository.full_name}@{submodule_commit.sha}).\n')

Updating planetarium/NineChronicles.DataProvider:release/221...

Cloning planetarium/NineChronicles.DataProvider:release/221 to /tmp/tmp3c_o2w_v...