Use date range in license copyright

[Baptouuuu]

Fix #5

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 96.08%. Comparing base (d381c12) to head (b303cd9).
⚠️ Report is 3 commits behind head on develop.

Additional details and impacted files

@@            Coverage Diff             @@
##             develop      #11   +/-   ##
==========================================
  Coverage      96.08%   96.08%           
  Complexity       267      267           
==========================================
  Files             34       34           
  Lines           2604     2604           
==========================================
  Hits            2502     2502           
  Misses           102      102           

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