Functions subcommands in runner binary
What does this MR do?
The gitlab-runner-{,helper} binary now is a functions runner, by bringing over the bare minimum of commands needed:
- serve
- proxy
Based on Draft: Add subcommand functions: serve, proxy, ... (!5867)
Why was this MR needed?
See: Convert runner helper to be a step-runner (step-runner#283 - closed)
What's the best way to test this MR?
-