CIAO: refactor runner tag / architecture handling

What

Refactor CIAO for better tag handling.

Author: Arvid

Co-Author: Me

Why

Instead of allowing multiple tags we define exactly which tags we are using as a type. The user can select only one tag that is going to define the type of infrastructure ( runner ) used and the architecture of the runner.

We add a special case for a Dynamic tags that can be used to run matrix / parallel gitlab jobs

How

Cherry-picked from !12637 (closed) for easier review

Manually testing the MR

Check that the code compiles and nothing is changed. This feature will be used in a subsequent MR.

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