`:number-lines: 0` for includes does not work correctly with docutils 0.22

[chrisjsewell]

Describe the bug

Because of this change: live-clones/docutils@f39ac14

.. include:: ...
   :code: python
   :number-lines: 0

.. include:: ...
   :literal:
   :number-lines: 0

Now numbering starts at 1 rather than 0

This is because the value parsed from the directive option has now changed from a None|str to None|int,
previously int("0" or 1) turned into 0, but now 0 or 1 turns into 1

How to Reproduce

...

Environment Information

...

Sphinx extensions

Additional context

No response

[gmilde]

Could you try with the Docutils repository version?
Commit r10293 should solve the issue.