ci: Add GoReleaser Support for macOS and Linux

[jshlbrd]

Description

• Adds support for GoReleaser.
• Uploads macOS and Linux builds (amd64, arm64) for the Substation CLI to new releases.

Motivation and Context

Using pre-built binaries for the CLI tool can significantly reduce the time it takes to integrate and use the tool compared to building from source. Building from source takes ~70s on my laptop, but downloading and extracting the pre-built binary takes ~5s.

How Has This Been Tested?

Example releases are here and can be tested using these Terminal commands:

$ wget https://github.com/jshlbrd/substation/releases/download/v4.0.0/substation_Darwin_arm64.tar.gz
$ tar -zxvf substation_Darwin_arm64.tar.gz substation
$ substation -h

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.