Qblox setting

[PiergiorgioButtarini]

This fixes qblox tests on qpu.
Here is the report of the qubit spectroscopy (that involves all the three qblox modules) performed with this branch:
http://login.qrccluster.com:9000/tAITAr7YSu-Zz3f6pRfdnQ==

Checklist:

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

[codecov]

Codecov Report

Attention: 36 lines in your changes are missing coverage. Please review.

Comparison is base (5b1ae2a) 65.94% compared to head (12b4db3) 65.89%.
Report is 102 commits behind head on main.

Files	Patch %	Lines
src/qibolab/instruments/qblox/controller.py	4.54%	21 Missing ⚠️
src/qibolab/instruments/qblox/cluster_qcm_bb.py	27.27%	8 Missing ⚠️
src/qibolab/instruments/qblox/cluster_qrm_rf.py	20.00%	4 Missing ⚠️
src/qibolab/instruments/qblox/cluster_qcm_rf.py	40.00%	3 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #676      +/-   ##
==========================================
- Coverage   65.94%   65.89%   -0.06%     
==========================================
  Files          57       57              
  Lines        7817     7816       -1     
==========================================
- Hits         5155     5150       -5     
- Misses       2662     2666       +4     

Flag	Coverage Δ
unittests	65.89% <23.40%> (-0.06%)	⬇️

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[PiergiorgioButtarini]

Sorry for all the troubles @stavros11 @alecandido, now all the tests are finally passing and is ready to be merged!

[stavros11]

I tried the QPU tests and there are still two failures but I believe these exist in main so I would not block this PR for it (we can fix them later). I also tried several qibocal routines and they seem to work as expected.

I think we can merge this, thanks @PiergiorgioButtarini.