perf: make migrators in parallel

[beckermr]

Description:

This PR changes the code to make all of the migrators in parallel. We will have test it live and baby sit. Might not happen until next week.

Checklist:

• Pydantic model updated or no update needed

Cross-refs, links to issues, etc:

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 80.98%. Comparing base (ee03001) to head (384b5c0).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #6501      +/-   ##
==========================================
- Coverage   80.98%   80.98%   -0.01%     
==========================================
  Files         144      144              
  Lines       17525    17525              
==========================================
- Hits        14193    14192       -1     
- Misses       3332     3333       +1     

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