feat: github actions logging

[nhedger]

This PR adds support for logging in GitHub Actions runners using annotations.

Description

When the GITHUB_ACTIONS environment variable is set, instead of logging a message with console.log, a GitHub Actions workflow command is used to log the message.

[joaomoreno]

Cool idea! But I don't think it warrants bringing in additional dependencies. Luckily we can achieve the same by simply outputting in their expected format: https://docs.github.com/en/actions/using-workflows/workflow-commands-for-github-actions#setting-a-notice-message

[nhedger]

I actually went without the dependency in the first place but realized that it contains a function for escaping the data and thought that using it would keep it more consistent.

https://github.com/actions/toolkit/blob/c5278cdd088a8ed6a87dbd5c80d7c1ae03beb6e5/packages/core/src/command.ts#L80-L85

I'm happy to remove the dependency and import that single function if you still think importing the dependency is overkill.

[joaomoreno]

Yeah, it's definitely better to avoid the extra dependency. It also seems that all we need escaping is the odd %.

[github-actions]

🎉 This PR is included in version 2.10.0 🎉

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

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