(iOS) Install Carthage dependencies

Description

Install Carthage dependencies.

Add the Carthage Step. Set the input variables:

Github Personal Access Token: We recommend adding a GitHub access token to your Secrets ($GITHUB_ACCESS_TOKEN). We need this token to avoid GitHub rate limit issue. See the GitHub guide: Creating an access token for command-line use on how to create Personal Access Token. Uncheck every scope box when creating this token. There is no reason this token needs access to private information.
(Optional) Set Additional options for carthage command: see the Carthage docs for the available options, for example, --use-xcframeworks --platform iOS.

If your project needs a Carthage version currently unavailable on our stacks, check out Setting a specific Carthage version in your builds.

- carthage@3:
    inputs:
    - carthage_options: "--use-xcframeworks --platform iOS"