Fix confusing message when breaking the MultilineLambdaItParameter rule

[socksinbed]

Previously, this message essentially suggested doing what the offending code would already be doing, which is using the implicit it in a multiline lambda expression.

[codecov]

Codecov Report

Merging #4089 (bd76708) into main (4053bb7) will not change coverage.
The diff coverage is 100.00%.

❗ Current head bd76708 differs from pull request most recent head c77391e. Consider uploading reports for the commit c77391e to get more accurate results

@@            Coverage Diff            @@
##               main    #4089   +/-   ##
=========================================
  Coverage     83.58%   83.58%           
  Complexity     3187     3187           
=========================================
  Files           459      459           
  Lines          9101     9101           
  Branches       1772     1772           
=========================================
  Hits           7607     7607           
  Misses          561      561           
  Partials        933      933           

Impacted Files	Coverage Δ
...h/detekt/rules/style/MultilineLambdaItParameter.kt	92.30% <100.00%> (ø)

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