Adding Dask support to mrun

[tsmathis]

Summary

Major changes:

added a Dask work broker for use with mrun

Todos

• [ ] test run a builder on a distributed cluster
• [ ] add documentation for the differences needed to write Dask-compatible builders

Checklist

• [ ] Google format doc strings added.
• [ ] Code linted with ruff. (For guidance in fixing rule violates, see rule list)
• [ ] Type annotations included. Check with mypy.
• [ ] Tests added for new features/fixes.
• [ ] I have run the tests locally and they passed.

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 25.37313% with 50 lines in your changes are missing coverage. Please review.

Project coverage is 80.58%. Comparing base (53867d9) to head (245cf3e). Report is 9 commits behind head on main.

Files	Patch %	Lines
src/maggma/cli/dask_executor.py	0.00%	47 Missing :warning:
src/maggma/cli/__init__.py	85.00%	3 Missing :warning:

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #927      +/-   ##
==========================================
- Coverage   81.56%   80.58%   -0.99%     
==========================================
  Files          46       47       +1     
  Lines        3938     4007      +69     
==========================================
+ Hits         3212     3229      +17     
- Misses        726      778      +52     

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