Plot nicely when punchout fitting fails

[Jacfomg]

Plot nicely when punchout fitting fails by removing the failed point from the plot at (0,0)

Checklist:

• Reviewers confirm new code works as expected.
• Tests are passing.
• Coverage does not decrease.
• Documentation is updated.

[codecov]

Codecov Report

Merging #421 (4f9387c) into main (e251c80) will increase coverage by 0.00%.
The diff coverage is 100.00%.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #421   +/-   ##
=======================================
  Coverage   96.77%   96.77%           
=======================================
  Files          48       48           
  Lines        3128     3129    +1     
=======================================
+ Hits         3027     3028    +1     
  Misses        101      101           

Flag	Coverage Δ
unittests	96.77% <100.00%> (+<0.01%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
...l/protocols/characterization/resonator_punchout.py	96.42% <100.00%> (+0.02%)	⬆️

[andrea-pasquale]

Thanks for the proposal @Jacfomg.
I think that this PR might be not necessary after we merge #413, since it will remove the try except block for the punchout. Lets see which PR gets merged first.

[andrea-pasquale]

By merging #423 I accidentally merged also this one.
I guess that it is fine. @Edoardo-Pedicillo can take care of the changes in #413.