feat(check): allow offline tests

Lars Wirzeniusrequested to merge
offline-check into main

Description

I'm working on a tool to emulate building in CI, called ambient, and it doesn't allow the build to have any network access at all. To be able to run the Subplot tests with the tool, I need to disable tests that need online access. For now, that's only reference.md.

Checklist

  • You have read, and followed the guidance in, the CONTRIBUTING guide
  • The MR content has run through a pipeline, or at least has pipelines enabled.
  • There are no licence concerns with this contribution (The README clearly states Subplot is MIT-0)

Merge request reports