Add support for more CI platforms

[neil-lindquist]

• azure pipelines
• Bitbucket's CI system
• Jenkins
• Cirrus CI?
• Github Actions (https://github.com/roswell/roswell/wiki/GitHub-Actions)
• [SourceHut[(https://sr.ht/)

[jgarte]

I'd like to also add SourceHut to the above list:

[] SourceHut

Here's is an example active build manifest and the docs for builds.sr.ht

https://git.sr.ht/~whereiseveryone/website/tree/master/item/.build.yml

https://man.sr.ht/builds.sr.ht/manifest.md

The Common Lisp Cookbook also mentions SourceHut's CI:

https://lispcookbook.github.io/cl-cookbook/testing.html#sourcehut

WDYT

[neil-lindquist]

Adding more platforms is definitely positive, particularly if they're needed for people's workflows. Unfortunately, I have a lot of other things that are a higher priority for me to work on. (For example, fixing support for the existing platforms.)

If you're willing to implement support for SourceHut, I'd be happy to add it. Feel free to make a separate issue if you want to discuss specifics.