Include a separate build step

[MJGaughran]

Use a separate build step to improve reliability when releasing new versions, and to indicate any issues with the build process before a full release is made.

[codecov]

Codecov Report

Attention: Patch coverage is 35.09434% with 172 lines in your changes missing coverage. Please review.

Project coverage is 44.75%. Comparing base (7f50a27) to head (ede4a0d).
Report is 12 commits behind head on main.

Files with missing lines	Patch %	Lines
src/deploy_tools/deploy.py	27.90%	62 Missing ⚠️
src/deploy_tools/check_deploy.py	23.52%	39 Missing ⚠️
src/deploy_tools/validate.py	29.78%	33 Missing ⚠️
src/deploy_tools/build.py	42.85%	12 Missing ⚠️
src/deploy_tools/module_creator.py	0.00%	8 Missing ⚠️
src/deploy_tools/sync.py	33.33%	6 Missing ⚠️
src/deploy_tools/layout.py	58.33%	5 Missing ⚠️
src/deploy_tools/module.py	50.00%	3 Missing ⚠️
src/deploy_tools/apptainer_creator.py	33.33%	2 Missing ⚠️
src/deploy_tools/command_creator.py	50.00%	1 Missing ⚠️
... and 1 more

Additional details and impacted files

@@            Coverage Diff             @@
##             main       #9      +/-   ##
==========================================
- Coverage   47.31%   44.75%   -2.56%     
==========================================
  Files          28       25       -3     
  Lines         801      811      +10     
==========================================
- Hits          379      363      -16     
- Misses        422      448      +26     

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