SMC: replace multinomial sampling with systematic sampling

[aloctavodia]

Empirically, systematic sampling has been shown to be systematically ;-) better than multinomial sampling when used for SMC.

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Major / Breaking Changes

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Bugfixes / New features

• SMC: replace multinomial sampling with systematic sampling

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[codecov]

Codecov Report

Merging #6162 (5e6f457) into main (c5ae227) will decrease coverage by 3.37%.
The diff coverage is 100.00%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #6162      +/-   ##
==========================================
- Coverage   91.36%   87.99%   -3.38%     
==========================================
  Files          91       91              
  Lines       20713    20771      +58     
==========================================
- Hits        18924    18277     -647     
- Misses       1789     2494     +705     

Impacted Files	Coverage Δ
pymc/smc/smc.py	96.62% <100.00%> (-0.62%)	⬇️
pymc/tests/distributions/test_bound.py	0.00% <0.00%> (-100.00%)	⬇️
pymc/tests/distributions/test_censored.py	0.00% <0.00%> (-100.00%)	⬇️
pymc/tests/distributions/test_truncated.py	0.00% <0.00%> (-100.00%)	⬇️
pymc/tests/distributions/test_simulator.py	0.00% <0.00%> (-99.51%)	⬇️
pymc/sampling_jax.py	0.00% <0.00%> (-97.19%)	⬇️
pymc/distributions/truncated.py	34.96% <0.00%> (-64.34%)	⬇️
pymc/distributions/bound.py	45.63% <0.00%> (-54.37%)	⬇️
pymc/distributions/simulator.py	34.04% <0.00%> (-53.20%)	⬇️
pymc/distributions/censored.py	92.50% <0.00%> (-7.50%)	⬇️
... and 9 more

[ricardoV94]

@aloctavodia you forgot to squash the two commits when merging. No biggie :)

[aloctavodia]

Thanks for the remainder. I completely forgot about that.