ci: use up to date docker images of core and node

[tzdybal]

Overview

Resolves #33.

Checklist

• [x] New and updated code has appropriate documentation
• [x] New and updated code has new and/or updated testing
• [x] Required CI checks are passing
• [x] Visual proof for any user facing features like CLI or documentation updates
• [x] Linked issues closed with keywords

[codecov-commenter]

Codecov Report

Merging #34 (081d2f6) into main (4868ef6) will not change coverage. The diff coverage is n/a.

:exclamation: Current head 081d2f6 differs from pull request most recent head e074f0e. Consider uploading reports for the commit e074f0e to get more accurate results

@@           Coverage Diff           @@
##             main      #34   +/-   ##
=======================================
  Coverage   54.02%   54.02%           
=======================================
  Files           2        2           
  Lines          87       87           
=======================================
  Hits           47       47           
  Misses         34       34           
  Partials        6        6           

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