Write GH Actions "allowed failure" reporter

[cgewecke]

There are 3 CI jobs marked continue-on-error which always pass.

Would be nice if there was an additional cue in the UI about whether they failed or not.

[ryanio]

one idea could be to split up the ci script into smaller steps so the continue-on-error property can be moved to only the part of the expected failure, so if it fails before that we will get a red x.

[cgewecke]

@ryanio We would get a red x but CI would allow merging? That's all that's necessary really...