TART_EXECUTOR_INSTALL_GITLAB_RUNNER: deprecate "true"

[edigaryev]

In favor of explicit "brew" and "curl" installation methods.

Tested all combinations manually on ghcr.io/cirruslabs/macos-sonoma-base:latest.

Resolves #48.

[fkorotkov]

What do you think of host option in the future? #48 (comment)

[edigaryev]

What do you think of host option in the future? #48 (comment)

From the linked issue:

for the specific versions, tart would pick an appropriate installation method (though for simplicity's sake, i would just go for curl)

I think we should only implement host if separate brew and curl wouldn't cut it.

[fkorotkov]

At the same time @cosmoshepcat reported that curl was flaky one day. Having a local copy transferred will make sure the config step is more stable.

We can start with this option to have an ability to choose strategy. But 'host' looks like an ideal solution for making sure runner on the host and writhing a VM is identical. 🤷‍♂️

[fkorotkov]

Your call. Anyone interested in the 'host' strategy please create a separate issue.

[umlaeute]

how does this solve #48 ? the title of my issue was "force a given version of gitlab-runner?" which i do not see addressed at all.