Auto generate `occ` namespace overviews
We should auto-generate the occ the command overview sections. We can use GitHub workflows to run occ periodically against new Nc releases.
This should greatly improve the accuracy of the Admin Manual occ chapter and streamline the labor intensity of keeping it up-to-date.
https://github.com/nextcloud/documentation/labels/feature%3A%20occ
This Sphinx extension could facilitate this:
https://github.com/OpenNTI/sphinxcontrib-programoutput
Looks like when we bump to symfony/console >= 6.3 there is native RST output support for help command output (!):
https://github.com/symfony/symfony/commit/f3ab66e0b3e83da459003fe081ab3aca8c0a023c
Talk app has an in-repo implementation used to generate it's occ docs which might be reusable: https://github.com/nextcloud/spreed/blob/dd0a6c454f4f1ec574f81457cdaef70609f2bdc2/lib/Command/Developer/UpdateDocs.php