update workflow versions

[kmdalton]

Update the versions of actions in build and publish workflows.

[codecov-commenter]

Codecov Report

Merging #139 (c469268) into main (42f8c96) will decrease coverage by 9.39%. The diff coverage is n/a.

@@            Coverage Diff             @@
##             main     #139      +/-   ##
==========================================
- Coverage   79.18%   69.79%   -9.39%     
==========================================
  Files          52       52              
  Lines        2344     2344              
==========================================
- Hits         1856     1636     -220     
- Misses        488      708     +220     

Flag	Coverage Δ
unittests	69.79% <ø> (-9.39%)	:arrow_down:

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[kmdalton]

CI was failing as of the tensorflow 2.14 release. The underlying cause was a memory leak in the test_cli.py submodule. Tracing this back, it seems to be an inherent issue with tensorflow a la this issue. This issue was always present, but it didn't become a problem until 2.14 started to allocate more memory than previous versions. Running careless in a separate process for the purposes of testing bypasses the memory leak and forces tf to clean up after the process exits. So, from now on, I'll be using subprocess to call the CLI during testing. It's not the most satisfying solution and will probably make debugging harder by dint of less specific error messages. However, it is required to stop the memory leak in order to stay within the ram limits of github's default runner.

[kmdalton]

I'm closing this PR in favor of #140, because this solution breaks codecov.