feat: Add support for converting dy.List, dy.Array to postgres array

[AndreasAlbertQC]

Motivation

I would like to save lists in postgres.

Changes

• Added conversion of the dy.List and dy.Array columns to sqlalchemy array dtypes for postgres.

In the future, we might extend this inference to also support JSONB. I think this would require allowing the user to choose because it appears to me that array is just a sane default here.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 100.00%. Comparing base (25cdb9b) to head (b0dea9a).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff            @@
##              main      #256   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           53        53           
  Lines         3086      3096   +10     
=========================================
+ Hits          3086      3096   +10     

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