Error message to show response body in External Pipeline Validation API
Proposal
The error message in the UI cannot be customized. It will always show "External validation failed". Can the error message instead show the response body from our pipeline validation service?
- A simple first implementation could be to return the text of the response here https://gitlab.com/gitlab-org/gitlab/-/blob/master/lib/gitlab/ci/pipeline/chain/validate/external.rb#L23