Inline ReturnFromFinally report message text

[schalkms]

There is no special need for a separate const value here.

[codecov]

Codecov Report

Merging #3277 (0dafcf4) into master (fc5c993) will increase coverage by 0.02%.
The diff coverage is 100.00%.

@@             Coverage Diff              @@
##             master    #3277      +/-   ##
============================================
+ Coverage     80.07%   80.09%   +0.02%     
+ Complexity     2653     2652       -1     
============================================
  Files           443      443              
  Lines          8096     8095       -1     
  Branches       1540     1539       -1     
============================================
+ Hits           6483     6484       +1     
  Misses          789      789              
+ Partials        824      822       -2     

Impacted Files	Coverage Δ	Complexity Δ
...bosch/detekt/rules/exceptions/ReturnFromFinally.kt	85.71% <100.00%> (+6.40%)	9.00 <0.00> (-1.00)	⬆️

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