Dependency on protobuf: is the upper constraint for version 7 still necessary?

[danigm]

Similar to #84

currently there is a upper boundary for the version constraint for the protobuf dependency:

"protobuf >=5.26, <7",

https://github.com/Nitrokey/nitrokey-sdk-py/blob/main/pyproject.toml#L32

Is this upper boundary still required?

This time the version in openSUSE is 7.34.1. I've tried to build the package and run the tests, and everything looks fine, but it's always good to ask to know if I'm doing something stupid.

[robin-nitrokey]

The type checks don’t work out of the box with protobuf v7, see #120, so this needs closer investigation. The problematic code is covered by the tests though. So if the tests succeed you should be fine.