Recipes calling relax/static jobs now return a dict

[vineetbansal]

This PR uses some changes in jobflow Replace behavior to test if the idea of subflows returning a dict {"relax": <list-of-jobs>, "static": <list-of-jobs>} might work. The upstream changes are from a fork of jobflow and a custom branch, till we're satisfied with the behavior, at which point we can open a PR on jobflow.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 97.64%. Comparing base (9e20655) to head (9e54236).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #3158   +/-   ##
=======================================
  Coverage   97.64%   97.64%           
=======================================
  Files          98       98           
  Lines        4282     4295   +13     
=======================================
+ Hits         4181     4194   +13     
  Misses        101      101           

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[Andrew-S-Rosen]

@claude review this PR

[Andrew-S-Rosen]

What is the status of this one again?

[vineetbansal]

@Andrew-S-Rosen - all we need here is to require jobflow>0.3.1 and modify our pyproject.toml and requirements-jobflow.txt. However, even though jobflow has merged our PRs, they haven't made a release yet.

Let me make that change so that when they do make a release, this PR can be merged.

[vineetbansal]

@Andrew-S-Rosen - this PR is ready for merge. Tests will fail right now, but as soon as the next release of jobflow is made (>0.3.1), we can re-run the CI and merge if passing.