Add an `a-pack` release file (package format for Alpine)

[John15321]

Crate a package generating release CI job in the release workflow for our project which should later be added to the release files. Bare in mind that a new testing CI job will be required to make sure it's working. The package should be for Alpine (preferably find a tool similar to (cargo-deb that generates it from a rust project).

Related to:

• Add a .rpm release to the release file #45
• Add an arch release to the release file #44
• Add a .deb release to the release file #42

Blocked by:

• Add release cycle workflows #31