chore: Update to hugr 0.13.2, fix deprecation warnings

[aborgna-q]

We can now drop the dependency on hugr-cli for tket2{,-py}.

Hugr roots now have (disconnected) ports, so I had to fix the low-level rewrite_dfg to ensure we keep the root valid.

[codecov]

Codecov Report

Attention: Patch coverage is 50.00000% with 5 lines in your changes missing coverage. Please review.

Project coverage is 82.17%. Comparing base (6a31663) to head (894f05d).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
tket2/src/serialize/guppy.rs	0.00%	5 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #669      +/-   ##
==========================================
+ Coverage   82.14%   82.17%   +0.02%     
==========================================
  Files          50       50              
  Lines        6777     6781       +4     
  Branches     6777     6781       +4     
==========================================
+ Hits         5567     5572       +5     
+ Misses        846      845       -1     
  Partials      364      364              

Flag	Coverage Δ
rust	82.17% <50.00%> (+0.02%)	⬆️

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[doug-q]

This should be gone right?

Suggested change

hugr-cli = "0.13.2"

[aborgna-q]

It's still a dependency of tket2-hseries, we only dropped it from tket2 and tket2-py