Fix qibolab backend

[andrea-pasquale]

Closes #1261.

Checklist:

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

[andrea-pasquale]

We may want to consider to make a release of qibo pretty soon to fix this issue given that both qibolab and qibocal use the latest release of qibo.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 99.95%. Comparing base (a603ddd) to head (fafc75f).

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #1262   +/-   ##
=======================================
  Coverage   99.95%   99.95%           
=======================================
  Files          72       72           
  Lines       10454    10454           
=======================================
  Hits        10449    10449           
  Misses          5        5           

Flag	Coverage Δ
unittests	99.95% <ø> (ø)

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[MatteoRobbiati]

Thanks @andrea-pasquale.

[andrea-pasquale]

We may want to consider to make a release of qibo pretty soon to fix this issue given that both qibolab and qibocal use the latest release of qibo.

Thoughts @alecandido @scarrazza?

[alecandido]

Sorry @andrea-pasquale, it happened during #1243, I didn't check carefully enough...