[fix] Update semver package to stable release

[rennokki]

Closes #50

[codecov]

Codecov Report

Merging #51 (fd99015) into master (b3ce7dd) will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##             master      #51   +/-   ##
=========================================
  Coverage     92.34%   92.34%           
  Complexity      497      497           
=========================================
  Files            54       54           
  Lines          1202     1202           
=========================================
  Hits           1110     1110           
  Misses           92       92           

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