refactor: use assert.PanicsWithValue

[wafuwafu13]

Issue #, if available:

Description of changes:

Change to use assert.PanicsWithValue
https://pkg.go.dev/github.com/stretchr/testify/assert#PanicsWithValue

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[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (c42f056) 72.93% compared to head (76b607c) 72.93%.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #541   +/-   ##
=======================================
  Coverage   72.93%   72.93%           
=======================================
  Files          26       26           
  Lines        1456     1456           
=======================================
  Hits         1062     1062           
  Misses        322      322           
  Partials       72       72           

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[bmoffatt]

Neat, thanks!