Re: [update] math/py-gmpy2 for Python 3.12

> security/badkeys (the only consumer) might benefit from tests from any > user of that port. Still works. I updated it to 0.0.12 while I was there. ok tb for the py-gmpy2 update

[update] math/py-gmpy2 for Python 3.12

Now that we have newer devel/libmpc, below updates math/py-gmpy2 to a version that builds with Python 3.12. I cleaned up the Makefile a bit to shorten COMMMENT, use HOMEPAGE from PKG-INFO, and update WANTLIB. security/badkeys (the only consumer) might benefit from tests from any user of that p