PQCrypto library is out of date

[aabmets]

@kpdemetriou
Hey, thank you for this library, but could you please update it to the latest PQClean release as of date?
Otherwise your library becomes just another abandoned library that consumes a good name on PyPI,
which can not be used by some other PQClean wrapper that wants to actively maintain itself.

Update:

If anybody wants to use an up-to-date and supported PQC library, then you can try out QuantCrypt.