feat: add CA certificate attribute config options

[gruyaume]

Description

No attributes were configurable for the CA certificate. By default, the country was set to US however. Here we remove this default and allow users to configure their CA certificate attributes.

Checklist:

• [ ] My code follows the style guidelines of this project
• [ ] I have performed a self-review of my own code
• [ ] I have made corresponding changes to the documentation
• [ ] I have added tests that validate the behaviour of the software
• [ ] I validated that new and existing unit tests pass locally with my changes
• [ ] Any dependent changes have been merged and published in downstream modules
• [ ] I have bumped the version of the library