Merge branch 'jivanvl-improve-error-handling-gcp-runner' into 'master'

Improve error handling in the GCP runner registration

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/146420



Merged-by: Samantha Ming <sming@gitlab.com>
Approved-by: Pedro Moreira da Silva <hi@pedroms.com>
Approved-by: Briley Sandlin <bsandlin@gitlab.com>
Approved-by: Samantha Ming <sming@gitlab.com>
Reviewed-by: Jose Ivan Vargas <jvargas@gitlab.com>
Reviewed-by: Pedro Pombeiro <noreply@pedro.pombei.ro>
Reviewed-by: Payton Burdette <pburdette@gitlab.com>
Co-authored-by: Jose Ivan Vargas <jvargas@gitlab.com>