Plain "lego" with config file: option to force renew one or more certs

Welcome

• Yes, I'm using a binary release or the library within the two latest releases.
• Yes, I've searched for similar issues on GitHub and didn't find any.

Detailed Description

Using plain lego command (not lego run) with a config file is convenient. However, if you then want to force renewal of one or more of the certs within that file, I cannot see any simple way to do so.

There is currently no lego --renew-force. If you use lego run --renew-force then you are required to duplicate all of the settings from the config file on the command line too (e.g. domains, challenge, challenge options... etc)

Ideas:

1. New flag lego --renew-force --all could force renewal of all domains in the config file (simple but minimal flexibility)
2. New flag lego --renew-force --cert.name foo --cert.name bar could force renewal of domains under the given keys in the YAML. e.g. it would only renew two of the certs in this config:

certificates:
  foo:
    domains:
      - example.com
  bar:
    domains:
      - example.org
  baz:
    domains:
      - example.net
      - other.example.net

Effective version of lego

v5.2.2

How do you use lego?

Binary

In which context are you using lego?

Personal and professional use

Supporting the Maintainers

• Yes, I find this project useful, and I appreciate the work done by the maintainers.
• Yes, I have starred this repository to help others find it.
• Yes, I have sponsored this project to keep the project stable and maintained.

Confirmation

• Yes, I've included all the information above (version, usage, etc.).