Core: rename tests to tests-ci

[pascalgrimaud]

Fix #290

[codecov]

Codecov Report

Merging #300 (e2526b9) into main (1a9a5e5) will not change coverage.
The diff coverage is n/a.

@@             Coverage Diff             @@
##                main      #300   +/-   ##
===========================================
  Coverage     100.00%   100.00%           
  Complexity       454       454           
===========================================
  Files             80        80           
  Lines           1452      1452           
  Branches          32        32           
===========================================
  Hits            1452      1452           

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