Add support for setting custom properties of a repository

### Describe the feature or problem you’d like to solve

I need to set in batch custom properties on a set of repositories

### Proposed solution

> How will it benefit CLI and its users?

Collaborate with other org users on using custom properties (e.g. flag some repos as candidate for archiving or deletion)

### Additional context

https://docs.github.com/en/organizations/managing-organization-settings/managing-custom-properties-for-repositories-in-your-organization