Proposal to remove M2Crypto

[Wolf1098]

Newer versions no longer provides an x509 module
with the functionality we need.
(M2Crypto generation of SWIG files was removed)

modified:   base/univention-errata-level/maintained-packages.txt
modified:   base/univention-ssl/debian/control
modified:   base/univention-ssl/make-certificates.sh
modified:   base/univention-ssl/tests/test_host_hook
modified:   base/univention-ssl/univention-certificate-check-validity
modified:   management/univention-directory-manager-modules/debian/control
modified:   management/univention-directory-manager-modules/modules/univention/admin/certificate.py
modified:   packaging/ucslint/testframework/0010-2-3-4-5/univention-certificate-check-validity
modified:   packaging/ucslint/testframework/0011-2-3-4-5-6-7-8/univention-certificate-check-validity
modified:   packaging/ucslint/testframework/0013-2/univention-certificate-check-validity
modified:   packaging/ucslint/testframework/0015-2/univention-certificate-check-validity
modified:   pyproject.toml
modified:   test/ucs-test/tests/01_base/101_ssl_cname_san.py
modified:   test/ucs-test/tests/59_udm/61_test_udm_users_unittests.py

Thank you for providing a pull request!

Please make sure you considered the following things

• I read the contribution guidelines.
• I read the code of conduct.
• I created a bug report in the Univention Bugzilla.
• I will add a bugzilla comment about this pull request.

Link to the issue in Bugzilla

An issue that would have to be tested/reviewed:
https://forge.univention.org/bugzilla/show_bug.cgi?id=55411

Description of the changes

• ** Debian doesn't ship m2crypto until twixie, but uses a version that is newer.
• *** This removed the ability to use swig generated module code, such as x509

[CLAassistant]

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