Migrate docker images to ghcr

[slok]

Contributes to #197

[codecov-commenter]

Codecov Report

Merging #199 (222be70) into main (1f6d383) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main     #199   +/-   ##
=======================================
  Coverage   78.25%   78.25%           
=======================================
  Files          16       16           
  Lines        1366     1366           
=======================================
  Hits         1069     1069           
  Misses        240      240           
  Partials       57       57           

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