Add --use-netrc option to carthage action

[tattn]

Checklist

• I've run bundle exec rspec from the root directory to see all new and existing tests pass
• I've followed the fastlane code style and run bundle exec rubocop -a to ensure the code style is valid
• I've read the Contribution Guidelines
• I've updated the documentation if necessary.

Motivation and Context

Carthage has --use-netrc option. (Carthage/Carthage#2774)
But the carthage action is not supported for the option.

Description

I added use-netrc option to carthage action.
And I added the test.

Testing Steps

I tried the option locally. It was successful.

carthage(platform: 'iOS', use_netrc: true)

[13:17:41]: ----------------------
[13:17:41]: --- Step: carthage ---
[13:17:41]: ----------------------
[13:17:41]: $ carthage bootstrap --use-netrc --platform iOS

[joshdholtz]

This looks great to me! Thanks for adding this in ❤️ Really appreciate the contribution!

[fastlane-bot]

Hey @tattn 👋

Thank you for your contribution to fastlane and congrats on getting this pull request merged 🎉
The code change now lives in the master branch, however it wasn't released to RubyGems yet.
We usually ship about once a week, and your PR will be included in the next one.

Please let us know if this change requires an immediate release by adding a comment here 👍
We'll notify you once we shipped a new release with your changes 🚀

[fastlane-bot]

Congratulations! 🎉 This was released as part of fastlane 2.154.0 🚀