Set the fault_tolerant flag in the qsample protocol.

[pehamTom]

Description

This PR fixes a minor problem in the simulation of deterministic state preparation circuits. qsample protocols need to be flagged whether they are fault-tolerant or not at construction to ensure that bounds are correctly computed. This PR sets this flag.

Checklist:

• The pull request only contains commits that are related to it.
• I have added appropriate tests and documentation.
• I have made sure that all CI jobs on GitHub pass.
• The pull request introduces no new warnings and follows the project's style guidelines.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 87.7%. Comparing base (3cef58e) to head (3981e02).
Report is 1 commits behind head on main.

Additional details and impacted files

@@          Coverage Diff          @@
##            main    #359   +/-   ##
=====================================
  Coverage   87.7%   87.7%           
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  Files         58      58           
  Lines       5126    5126           
  Branches     372     372           
=====================================
  Hits        4498    4498           
  Misses       628     628           

Flag	Coverage Δ		*Carryforward flag
cpp	83.7% <ø> (ø)		Carriedforward from 3cef58e
python	89.6% <100.0%> (ø)

*This pull request uses carry forward flags. Click here to find out more.

Files with missing lines	Coverage Δ
src/mqt/qecc/circuit_synthesis/simulation_det.py	92.2% <100.0%> (ø)