🔧 Fix Docker deployment

[chrisjsewell]

Fix the Docker build, which failed on the last deployment

Also

• Add the new plotting extra, to install matplotlib
• Makes the docker build workflow run (without deployment) in PRs that modify the Docker files,
• fixes deprecation warning in workflow: https://github.blog/changelog/2022-10-11-github-actions-deprecating-save-state-and-set-output-commands/

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

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Additional details and impacted files

@@            Coverage Diff            @@
##             master    #1070   +/-   ##
=========================================
  Coverage          ?   79.27%           
=========================================
  Files             ?       56           
  Lines             ?     6460           
  Branches          ?        0           
=========================================
  Hits              ?     5121           
  Misses            ?     1339           
  Partials          ?        0           

Flag	Coverage Δ
pytests	79.27% <ø> (?)

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[danwos]

Looks good, thanks 👍