Gitea fails to process test task in laconic-sdk

[dboreham]

Migrated the laconic-sdk repo and made a PR to test Actions.
Nothing runs. In Gitea log I see:

2023/03/28 14:17:05 ...actions/workflows.go:71:DetectWorkflows() [W] ignore invalid workflow "test.yml": unknown on type: <nil>

The action runs on GitHub:

[telackey]

There appear to be a be a bug in nektos/act (or at least gitea's fork of it) which does not process the YAML of an on specification correctly when there are no child nodes, eg:

on:
  pull_request:
  push:
    branches:
      - main
      - release/**

Specifically, the error was here, because v is nil in this instance: https://gitea.com/gitea/act/src/commit/929ea6df751b98f399498d35bb1c68f4e6c15e14/pkg/jobparser/model.go#L166

But it looks like it was fixed a few days ago: https://gitea.com/gitea/act/commit/3daf3132057d33bee325857b016a60db332fd050

In my local testing, I was able to make it happy by adding a types child, but interestingly when running in gitea (and I tried both 1.19 and the latest 1.20.0 dev build, which I hoped would have the latest act, but it doesn't seem like it is quite up to date yet) the only thing to satisfy it was to add a branches child.

In the meantime, a fairly simple workaround is to change it to:

on:
  pull_request:
    branches:
      - '*'
  push:
    branches:
      - main
      - release/**

[telackey]

I opened a PR with the fix: cerc-io/laconic-sdk#38

It now runs, but fails because it cannot checkout laconicd (which makes sense, as I don't have it in my gitea, nor have I given it a GitHub token to get it from there).