ParametrizedEvolution: Use params in super call

[AlbertMitjans]

Use params in super().__init__ call to update the num_params attribute.

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[dwierichs]

Looks good to me, thanks for the quick mod!

Could you add a test that checks the difference in behaviour within a tape between a ParametrizedEvolution that has been called and one that hasn't?

[codecov]

Codecov Report

Merging #3730 (4e78b04) into master (58d8243) will increase coverage by 0.00%.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##           master    #3730   +/-   ##
=======================================
  Coverage   99.73%   99.73%           
=======================================
  Files         329      329           
  Lines       28759    28829   +70     
=======================================
+ Hits        28683    28753   +70     
  Misses         76       76           

Impacted Files	Coverage Δ
pennylane/math/__init__.py	100.00% <ø> (ø)
pennylane/ops/qubit/parametric_ops.py	99.90% <ø> (ø)
pennylane/math/multi_dispatch.py	100.00% <100.00%> (ø)
pennylane/math/single_dispatch.py	99.70% <100.00%> (+<0.01%)	⬆️
pennylane/ops/qubit/special_unitary.py	100.00% <100.00%> (ø)
pennylane/pulse/parametrized_evolution.py	95.55% <100.00%> (+0.10%)	⬆️

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[dwierichs]

Nice idea to return a new operator! I think this makes the handling nicer :)

Just two tiny questions left to approve (see comments).

[dwierichs]

Thanks @AlbertMitjans !