Add octocat-rs to the list of REST API libraries

[proudmuslim-dev]

Code of Conduct

• I have read and agree to the GitHub Docs project's Code of Conduct

What article on docs.github.com is affected?

https://docs.github.com/en/rest/overview/libraries

What part(s) of the article would you like to see updated?

This section: https://docs.github.com/en/rest/overview/libraries#rust
Repository for octocat-rs: https://github.com/octocat-rs/octocat-rs

The docs should be changed to include octocat-rs for completeness, as it's best for users to know all of the options available to them.

Additional information

No response

[welcome]

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