Fix NumPy integer/floating checks on Perspective

[philippjfr]

Fix #4362

[codecov]

Codecov Report

Merging #4366 (8883570) into main (e459067) will decrease coverage by 0.02%.
The diff coverage is 0.00%.

@@            Coverage Diff             @@
##             main    #4366      +/-   ##
==========================================
- Coverage   70.30%   70.29%   -0.02%     
==========================================
  Files         240      240              
  Lines       34802    34802              
==========================================
- Hits        24469    24464       -5     
- Misses      10333    10338       +5     

Flag	Coverage Δ
unitexamples-tests	70.29% <0.00%> (-0.02%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
panel/pane/perspective.py	59.46% <0.00%> (ø)
panel/widgets/debugger.py	89.39% <0.00%> (-3.04%)	⬇️
panel/models/tabulator.py	96.70% <0.00%> (-1.10%)	⬇️
panel/io/state.py	70.12% <0.00%> (-0.18%)	⬇️
panel/template/base.py	76.64% <0.00%> (+0.18%)	⬆️

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