Migrate Docker images to ghcr.io

[pkosiec]

• Repush all previous Mongo Seeding images under ghcr.io
• Update release script to push the image to ghcr.io

[codecov]

Codecov Report

Merging #205 (ddb0568) into main (c257479) will not change coverage.
The diff coverage is n/a.

❗ Current head ddb0568 differs from pull request most recent head 27969aa. Consider uploading reports for the commit 27969aa to get more accurate results

@@           Coverage Diff           @@
##             main     #205   +/-   ##
=======================================
  Coverage   92.80%   92.80%           
=======================================
  Files          18       18           
  Lines         278      278           
  Branches       56       56           
=======================================
  Hits          258      258           
  Misses         12       12           
  Partials        8        8           

Flag	Coverage Δ
cli	93.75% <ø> (ø)
core	92.52% <ø> (ø)

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