feature: Support for using --no-default-labels

[staffanf]

Summary

Enables registring a github runner without the default self-hosted, linux and x86 labels.

See https://github.com/actions/runner/pull/2443 and To create individual self-hosted runners without the default labels, pass the --no-default-labels flag when you create the runner. .

and

opt/actions-runner$ ./config.sh --help
...
 --labels string        Custom labels that will be added to the runner.
                        This option is mandatory if --no-default-labels is used.
 --no-default-labels    Disables adding the default labels: 'self-hosted,Linux,X64'

This make sit easier to create a runner that only pulls jobs with more specific tags

Issue Type

Feature Idea