chore: Remove deprecated uses of NodeTemplate::Call

[aborgna-q]

Reverted in #1325 due to a bug in hugr, now fixed in 0.25.2.

The change in unpack_container seems to cause issues since we are not lowering operations defined in the templates themselves recursively.

[codecov]

Codecov Report

❌ Patch coverage is 96.15385% with 2 lines in your changes missing coverage. Please review.
✅ Project coverage is 79.77%. Comparing base (1efcfa6) to head (549c1d6).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
tket-qsystem/src/extension/qsystem/lower.rs	92.30%	1 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1341      +/-   ##
==========================================
+ Coverage   79.74%   79.77%   +0.03%     
==========================================
  Files         158      158              
  Lines       20509    20544      +35     
  Branches    19542    19577      +35     
==========================================
+ Hits        16355    16390      +35     
  Misses       3173     3173              
  Partials      981      981              

Flag	Coverage Δ
python	92.93% <ø> (ø)
rust	79.11% <96.15%> (+0.03%)	⬆️

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[acl-cqc]

I've merged with main and temporarily included hugr#2800 which I think fixes the problem....