Fix release checker message versions

[duboiss]

[codecov]

Codecov Report

Merging #410 (953d1b8) into master (2c7e57d) will not change coverage.
The diff coverage is 100.00%.

@@            Coverage Diff            @@
##             master     #410   +/-   ##
=========================================
  Coverage     97.59%   97.59%           
  Complexity      321      321           
=========================================
  Files            40       40           
  Lines          1080     1080           
=========================================
  Hits           1054     1054           
  Misses           26       26           

Impacted Files	Coverage Δ
src/Service/ReleaseChecker.php	100.00% <100.00%> (ø)

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