Fix inconsistency between qubits measurements in readout circuits and real measurement circuits

[ddddddanni]

There is an inconsistency on qubits measurements in readout circuits and measurement circuits. The measurement circuits always measure the full circuit set of qubits, while the qubits being measured in readout/calibration circuits are based only on the qubits present in the Pauli strings. In this PR, I have updated the circuit generation to only measure the qubits relevant to the Pauli group being processed.

[codecov[bot]]

Codecov Report

:white_check_mark: All modified and coverable lines are covered by tests. :white_check_mark: Project coverage is 99.57%. Comparing base (6871bdb) to head (77aafb4). :warning: Report is 10 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #7801      +/-   ##
==========================================
- Coverage   99.57%   99.57%   -0.01%     
==========================================
  Files        1102     1102              
  Lines       98638    98772     +134     
==========================================
+ Hits        98218    98350     +132     
- Misses        420      422       +2     

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[ddddddanni]

@eliottrosenberg Can you take a look at this? Thank!