MINIFICPP-2697 Upgrade m2crypto

[fgerlits]

Upgrade m2crypto to the latest version, to make the tests work with Python 3.13.
Plus, some minor improvements to the help string of the test runner scripts.

https://issues.apache.org/jira/browse/MINIFICPP-2697

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[szaszm]

+1

I don't know if this fixes all the issues, but I've also created a jira for fixing behave on python 3.13: MINIFICPP-2695. If this fixes all issues, then I'll close that.

[fgerlits]

+1

I don't know if this fixes all the issues, but I've also created a jira for fixing behave on python 3.13: MINIFICPP-2695. If this fixes all issues, then I'll close that.

I have run the Behave tests (both old and new) locally with Python 3.13 after this change successfully. Not every extension was enabled, though.