Fix Compiler Warnings

[hillmich]

• Fix compiler warnings, mostly shadowing variables

[github-actions]

Cpp-Linter Report ✔️

No problems need attention.

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[codecov]

Codecov Report

Merging #266 (6cea747) into main (08304cf) will decrease coverage by 0.1%.
The diff coverage is 94.7%.

@@           Coverage Diff           @@
##            main    #266     +/-   ##
=======================================
- Coverage   95.0%   94.9%   -0.1%     
=======================================
  Files         20      20             
  Lines       1937    1940      +3     
  Branches     344     345      +1     
=======================================
+ Hits        1841    1842      +1     
- Misses        96      98      +2     

Impacted Files	Coverage Δ
src/StochasticNoiseSimulator.cpp	95.5% <80.0%> (-0.5%)	⬇️
include/DeterministicNoiseSimulator.hpp	100.0% <100.0%> (ø)
include/ShorFastSimulator.hpp	100.0% <100.0%> (ø)
include/StochasticNoiseSimulator.hpp	95.6% <100.0%> (ø)
src/ShorFastSimulator.cpp	95.5% <100.0%> (ø)

... and 2 files with indirect coverage changes