Factory creation from public GitLab repo fails

[vinokurig]

Describe the bug

When trying to create a factory from a public GitLab repo, the process fails with an error:

Failed to request factory resolver: Error occurred during creation a workspace from devfile located at `https://gitlab.com/rhi-demo/salesforce-webhook-ingestor.git`. Cause: Neither of `apiVersion` or `schemaVersion` found. This is not a valid devfile.

Che version

next (development version)

Steps to reproduce

1. Check that the GitLab OAuth provider is NOT configured.
2. Try to start a factory from a public GitLab Url e.g. https://gitlab.com/rhi-demo/salesforce-webhook-ingestor.git
3. See an error

Expected behavior

Factory from a public GitLab repo should start successfully.

Runtime

OpenShift

Screenshots

No response

Installation method

OperatorHub

Environment

macOS

Eclipse Che Logs

No response

Additional context

No response