des encription with passlib

[nakagami]

crypt module will be removed.
https://peps.python.org/pep-0594/

crypt module is used for Legacy_Auth (for Firebird 3 and 4), so use passlib to fallback.

passlib
https://pypi.org/project/passlib/

>>> import crypt
>>> crypt.crypt("secret", '9z')
'9zMktUfATCrdY'

>>> import passlib.hash
>>> passlib.hash.des_crypt.hash("secret", salt='9z')
'9zMktUfATCrdY'