Issues deploying pyjks due to unpinned pycryptodome depenency

[rbanffy]

Pyjks has an unpinned dependency on pycryptodome that caused our build system to try to use version 3.10.1 and failing (Docker, CentOS 7-ish). We pinned pycryptodome manually in our requirements to 3.9.9 and that made it pass successfully. The failure was only observed in the docker environment and did not result from a failed download or anything I can pin down right now.

[jeswils-ap]

twofish dependency is similarly causing errors.