Ignore InstanceOfCheckForException by default for tests.

[vanniktech]

Should be fine to use while testing and asserting that we've got a certain exception.

[codecov-io]

Codecov Report

Merging #1424 into master will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##             master    #1424   +/-   ##
=========================================
  Coverage     74.14%   74.14%           
  Complexity     1930     1930           
=========================================
  Files           324      324           
  Lines          5105     5105           
  Branches        945      945           
=========================================
  Hits           3785     3785           
  Misses          770      770           
  Partials        550      550

Impacted Files	Coverage Δ	Complexity Δ
...ekt/generator/printer/rulesetpage/ConfigPrinter.kt	83.33% <ø> (ø)	10 <0> (ø)	⬇️

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