fix: Uses update status to retry generating certificates for outstanding requests

[saltiyazan]

Description

Currently the lib will only try once to run the lego command, and if that fails for any reason (for example some server error) ir doesn't try again, and there is no way to re-tigger the mechanism other than sending a new request from the requirer. We use update status to go over all outstanding requests and try again.

• Uses update status to retry generating certificates for outstanding requests
• Adds unit tests

Checklist:

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