TST: filter_par.rst result is from numpy<2

[pllim]

Description

filter_par.rst result is from numpy<2 and needs to be updated when we run it with numpy>=2

Fixes #374

[github-actions]

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[github-actions]

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (d07fe2a) 96.80% compared to head (45ee8dd) 96.80%.

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #375   +/-   ##
=======================================
  Coverage   96.80%   96.80%           
=======================================
  Files          17       17           
  Lines        2034     2034           
=======================================
  Hits         1969     1969           
  Misses         65       65           

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