Move slightly duplicated RVs to PyTensor

[soma2000-lang]

What is this PR about?

WaldRV (extra param)
StudentTRV (duplicated)
Partially address #6479
@ricardoV94 @OriolAbril @michaelosthege @larryshamalama @aloctavodia

[codecov]

Codecov Report

Merging #6502 (98a6c69) into main (ac9652e) will decrease coverage by 16.51%.
The diff coverage is n/a.

Additional details and impacted files

@@             Coverage Diff             @@
##             main    #6502       +/-   ##
===========================================
- Coverage   94.82%   78.32%   -16.51%     
===========================================
  Files         148      148               
  Lines       27818    27802       -16     
===========================================
- Hits        26379    21776     -4603     
- Misses       1439     6026     +4587     

Impacted Files	Coverage Δ
pymc/distributions/continuous.py	65.09% <ø> (-32.59%)	⬇️
pymc/tests/logprob/test_utils.py	0.00% <0.00%> (-100.00%)	⬇️
pymc/tests/logprob/test_cumsum.py	0.00% <0.00%> (-100.00%)	⬇️
pymc/tests/logprob/test_mixture.py	0.00% <0.00%> (-100.00%)	⬇️
pymc/tests/logprob/test_abstract.py	0.00% <0.00%> (-100.00%)	⬇️
pymc/tests/logprob/test_rewriting.py	0.00% <0.00%> (-100.00%)	⬇️
pymc/tests/logprob/test_joint_logprob.py	0.00% <0.00%> (-100.00%)	⬇️
pymc/tests/logprob/test_composite_logprob.py	0.00% <0.00%> (-100.00%)	⬇️
pymc/tests/distributions/test_continuous.py	0.00% <0.00%> (-99.78%)	⬇️
pymc/tests/logprob/test_transforms.py	0.00% <0.00%> (-99.76%)	⬇️
... and 51 more

[soma2000-lang]

just a gentle reminder @ricardoV94 @OriolAbril @michaelosthege @larryshamalama @aloctavodia

[michaelosthege]

Looks like the tests fail because WaldRV from PyTensor has a fewer parameters?

TypeError: WaldRV.__call__() got multiple values for argument 'size'

[soma2000-lang]

@michaelosthege surely looking into this

[ricardoV94]

Closing this one for lack of activity. Feel free to open a new one if you want to still pursue it!