DM-37744: Make felis compatible with sqlalchemy 2

[andy-slac]

Few small changes to make it work with both 1.4 and 2.0, plus mypy updates for new sqlalchemy.

[codecov]

Codecov Report

Base: 97.92% // Head: 97.93% // Increases project coverage by +0.01% 🎉

Coverage data is based on head (58065d5) compared to base (4b373c4).
Patch coverage: 100.00% of modified lines in pull request are covered.

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #18      +/-   ##
==========================================
+ Coverage   97.92%   97.93%   +0.01%     
==========================================
  Files           6        6              
  Lines         386      388       +2     
==========================================
+ Hits          378      380       +2     
  Misses          8        8              

Impacted Files	Coverage Δ
tests/test_sql.py	96.10% <100.00%> (+0.10%)	⬆️

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[timj]

Looks good. Can you also please run pre-commit autoupdate to update the pre-commit configuration? (and maybe add a flake8 section to it copied from daf_butler)