CI, Release: Link Debian and Redhat packages with the release

Context

This merge request update the CI so that each new created releases includes a link to corresponding Debian and Redhat packages.

For a new release X.Y, the pipeline now runs jobs to builds those packages that will be published in the package registry as tezos-{deb|rpm}-X.Y. Then, in the packages part of the release, there is a link to these packages.

Manually testing the MR

Check the fake release https://gitlab.com/nomadic-labs/tezos/-/releases/v837.13

Checklist

• Document the interface of any function added or modified (see the coding guidelines)
• Document any change to the user interface, including configuration parameters (see node configuration)
• Provide automatic testing (see the testing guide).
• For new features and bug fixes, add an item in the appropriate changelog (docs/protocols/alpha.rst for the protocol and the environment, CHANGES.rst at the root of the repository for everything else).
• Select suitable reviewers using the Reviewers field below.
• Select as Assignee the next person who should take action on that MR