Extension not published on OpenVSX (even if configured)

[echoix]

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Before the extension was supported by GitHub, the extension https://open-vsx.org/extension/cschleiden/vscode-github-actions was available on OpenVSX, so it could be used as vscode extension outside pure VSCode without infringing on the visualstudio marketplace. One of the usages is in Gitpod.

I saw that issue #73 was closed in August, a workflow should have deployed to OpenVSX, but seems to not be properly configured yet.

I'm opening this since on #275, the issue seems closed, but it isn't really fixed, so it shouldn't be hidden from the things to do.

I hope I included enough info for this "reminder" issue.