[#40] Stop including `cryptography`.

[dumol]

Scope

Fixes #40

Changes

Stop including the upstream cryptography wheels.

Building our own OpenSSL libs is still needed for Python's ssl module. (Except on Windows, where the upstream package comes with its own OpenSSL libs.)

Drive-by changes:

• updated Python to latest 3.11.x version
• updated OpenSSL for Python's ssl to latest 3.1.x version on non-Windows platforms
• minor lib updates to latest versions for XZ and SQLite
• some other minor Python module updates, including a security fix for pip
• minor workflow improvements from server repo.

Testing

Check changes and automated tests.

Try the testing packages from bin.chevah.com, e.g. https://bin.chevah.com:20443/testing/3.11.7.3785e41/

[adiroiban]

Also, happy to see Laja at work. I am quite happy with macmini M1 for macOS

GitHub now has mac M1 runners... but they cost $0.16 per minute... so with our 10 minutes job it would take more than $1.5 for each run