chore: update to hugr 0.14.4

[ss2165]

and simplify strum dependency

[hugrbot]

This PR contains breaking changes to the public Rust API.
Please deprecate the old API instead (if possible), or mark the PR with a ! to indicate a breaking change.

cargo-semver-checks summary

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 82.45%. Comparing base (2cff11b) to head (3c9a1b0).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #785      +/-   ##
==========================================
- Coverage   82.46%   82.45%   -0.02%     
==========================================
  Files          65       65              
  Lines        7979     7979              
  Branches     7717     7717              
==========================================
- Hits         6580     6579       -1     
- Misses       1002     1003       +1     
  Partials      397      397              

Flag	Coverage Δ
python	82.06% <ø> (ø)
rust	82.46% <ø> (-0.02%)	⬇️

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[ss2165]

Waiting for a tket-json-rs release before proceeding (that is breaking the semver checks)

[ss2165]

Semver checks are failing still for what looks like issues with strum on main. I think merging this PR is the way to fix that, so I'm going to merge it and release.