This action sets up a Go+ environment for use in actions by:

• Optionally downloading and caching a version of Go+ by version and adding to PATH.
• Registering problem matchers for error output.

• Supports gop-version and go-version
• Supports SemVer.

Ths action installs Go, and then installs Go+ using git.

Version matching by SemVer spec:

steps:
  - uses: actions/checkout@v4
  - uses: goplus/setup-goplus@v1
    with:
      go-version: '1.21.0'
      gop-version: '1.1.8' # The Go+ version to download (if necessary) and use.
  - run: gop version