[INFRA] update CI

[Remi-Gau]

• switch to gtihub action to check mardown

[codecov]

Codecov Report

Merging #160 (096cd5d) into release_candidate_2.0 (d8d4c5d) will not change coverage.
The diff coverage is n/a.

@@                  Coverage Diff                   @@
##           release_candidate_2.0     #160   +/-   ##
======================================================
  Coverage                  79.90%   79.90%           
======================================================
  Files                         30       30           
  Lines                        652      652           
======================================================
  Hits                         521      521           
  Misses                       131      131           

Flag	Coverage Δ
unittests	79.90% <ø> (ø)

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