Convert Azure pipeline templates to GitHub workflows

[ianrobrien]

I see that there are some pipelines in Azure that are used in some of our application pipelines (see storm-121/azure-pipelines.yaml

Is it worthwhile to migrate these over to GitHub? Do we know how many projects are using these pipeline templates?

[Gipphe]

At least one of the pipelines is already being worked on in this pull request. I don't know how many projects use those pipelines.