macOS Runner Support

First of all, thanks for publishing an action like this! It's really nice to be able to use this to customize how Crowdin fits into our workflow.

**Is your feature request related to a problem? Please describe.**
Our team runs GitHub Actions on runners hosted locally on our MacBooks to save us money and time. We recently built out a workflow using this action, but then ran it and discovered it can't be run on our MacBooks as it's container-based and Linux is required.

**Describe the solution you'd like**
It'd be great if this action could be run on any runner supported by GitHub, but macOS is the important one for us.

**Describe alternatives you've considered**
In the mean time, we can run on GitHub-hosted Linux runners, it'll just cost us a bit of money.