[BUG] nightly repos - version build numbers make automated installs of nightlys difficult

[ITJamie]

Description
nightly repos do not have a sane version syntax that can be assumed,
adding a symlink from "minor/latest" to "minor/{build_version}" will fix the issue. otherwise scraping of the folder is needed for automated installs

Additional context
previous pr allowed us to get further down the nightly install chain (#64907)

[OrangeDog]

Is this part of #64917?

[ITJamie]

Is this part of #64917?

no thats a separate issue

[s0undt3ch]

Bare with me.
We both agree that the current nightly, if you always want to latest nightly is cumbersome.

How about, taking https://repo.saltproject.io/salt-dev/3006.x/latest as the base URL:

salt/py3/debian/11/amd64/latest -> salt/py3/debian/11/amd64/minor/3006.1+298.g08482ed6f3/

salt/py3/redhat/8/x86_64/latest -> salt/py3/redhat/8/x86_64/minor/3006.1+298.g08482ed6f3/

Then salt/py3/redhat/8/x86_64/latest.repo is either a link to salt/py3/redhat/8/x86_64/minor/nightly.repo or a separate one, which would point to salt/py3/redhat/8/x86_64/minor/<salt-version> ...

Thoughts?

[ITJamie]

That works for me. But we need to be 100% certain that the links inside that latest.repo are actually pointing to the latest path instead of the builddate/version numbered paths. Since those files get downloaded only once (hence me making the pr with the extra file)