Workflows can use latest builds to compile and test current version

[masesdevelopers]

Is your feature request related to a problem? Please describe.
Currently, when a patch is done on a repository (e.g. JNet) the other repositories (e.g. KNet) needs an official delivery to check for issues solved. If GitHub stores packages with patches added in the meantime, at the same latest version, the other repositories can use GitHub as a source instead of NuGet.org.

Describe the solution you'd like
Within the build.yaml, after the packages were built, upload them on GitHub.

Describe alternatives you've considered
Another option is to create pre-release version, however they need a change in many files between and indeed a less automatic management.

Additional context
N/A

[masesdevelopers]

It is not possible to use GitHub NuGet registry without previously removes the uploaded package; indeed it is only possible to remove the entire package on web UI, not a single version. Another option can be to use the uploaded artifact using the counterpart action https://github.com/actions/download-artifact: a check shall be done to verify how to identify the last run-id when the action runs cross-repository.