cgi module is removed from Python 3.13

[sebastic]

cgi is imported in pycsw/ogc/csw/csw2.py & pycsw/ogc/csw/csw3.py

Using legacy-cgi might be an option.

[github-actions]

This Issue has been inactive for 90 days. In order to manage maintenance burden, it will be automatically closed in 7 days.

[sebastic]

Stupid bot, don't hide issues simply because nobody is willing or able to spend the time to fix them.