[WIP] Fix bug where unexpected queuing occurs in qml.ctrl among other functions

[KetpuntoG]

This PR seeks to fix this bug.

The issue was that unwanted operators were being added when applying the qml.ctrl, qml.prod, qml.cond and qml.adjoint functions if they were located as arguments or kwargs.

To solve it I do a recursive search, for operators inside args and kwargs and I remove them.

Drawback:

This will delete it always. I can't think of a case where we want to add an operator to the queue by passing it as an argument.

[github-actions]

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[codecov]

Codecov Report

Attention: Patch coverage is 88.88889% with 2 lines in your changes missing coverage. Please review.

Project coverage is 99.68%. Comparing base (cbc5a9d) to head (e921546).
Report is 4 commits behind head on master.

Files with missing lines	Patch %	Lines
pennylane/ops/op_math/controlled.py	84.61%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #6284      +/-   ##
==========================================
- Coverage   99.69%   99.68%   -0.01%     
==========================================
  Files         443      444       +1     
  Lines       42022    42151     +129     
==========================================
+ Hits        41894    42020     +126     
- Misses        128      131       +3     

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