ReadTheDocs generation is failing

Found by !6 (merged)

Running Sphinx v5.3.0

Traceback (most recent call last):
  File "/home/docs/checkouts/readthedocs.org/user_builds/lightweight-versioned-gitla/checkouts/latest/docs/conf.py", line 17, in <module>
    from lightweight_versioned_gitlab_pages import generate
ModuleNotFoundError: No module named 'lightweight_versioned_gitlab_pages'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/docs/checkouts/readthedocs.org/user_builds/lightweight-versioned-gitla/envs/latest/lib/python3.9/site-packages/sphinx/config.py", line 350, in eval_config_file
    exec(code, namespace)
  File "/home/docs/checkouts/readthedocs.org/user_builds/lightweight-versioned-gitla/checkouts/latest/docs/conf.py", line 19, in <module>
    raise SystemExit(
SystemExit: Generator of lightweight_versioned_gitlab_pages has to be importable

The above exception was the direct cause of the following exception: