Fix FunctionParameterNamingSpec

[BraisGabin]

We weren't testing the correct rule.

[codecov]

Codecov Report

Merging #4145 (a4cd60c) into main (f12697d) will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##               main    #4145   +/-   ##
=========================================
  Coverage     83.44%   83.44%           
  Complexity     3177     3177           
=========================================
  Files           465      465           
  Lines          9104     9104           
  Branches       1775     1775           
=========================================
  Hits           7597     7597           
  Misses          572      572           
  Partials        935      935           

Impacted Files	Coverage Δ
.../detekt/rules/naming/ConstructorParameterNaming.kt	96.55% <0.00%> (-3.45%)	⬇️
...sch/detekt/rules/naming/FunctionParameterNaming.kt	95.45% <0.00%> (+4.54%)	⬆️

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