Upgrade to Maven 3.8.3 and add maven enforcer plugin

[pascalgrimaud]

No description provided.

[codecov]

Codecov Report

Merging #134 (1385454) into main (4389195) will not change coverage.
The diff coverage is n/a.

@@             Coverage Diff             @@
##                main      #134   +/-   ##
===========================================
  Coverage     100.00%   100.00%           
  Complexity       275       275           
===========================================
  Files             46        46           
  Lines            922       922           
  Branches          23        23           
===========================================
  Hits             922       922           

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