Dynamical version

[valeriupredoi]

Description

About time we popped an actual dynamical version mechanism.

Before you get started

• ☝ Create an issue to discuss what you are going to do

Checklist

• This pull request has a descriptive title and labels
• This pull request has a minimal description (most was discussed in the issue, but a two-liner description is still desirable)
• Unit tests have been added (if codecov test fails)
• Any changed dependencies have been added or removed correctly (if need be)
• If you are working on the documentation, please ensure the current build passes
• All tests pass - no but the 15 failing are all due to Reductionist being offline today 30 July 2026 due to JASMIN updates+restarts day

[valeriupredoi]

15 failed tests due to Reductionist offline (JASMIN updates day); extra two tests for version pass