Comment 1 for bug 1926431

I looked at this recently. I think a preferable option would be to add support to readthedocs to support Launchpad's webhook format, since it already has customized support for several other hosting sites, and this would allow better handling on their side anyway. https://paste.ubuntu.com/p/wbJfBp9Gh9/ is a start at this, but there are probably a few other bits I've missed, and it needs tests.