packaging: Stopped testing with SQLAlchemy 1.4

[edgarrmondragon]

---

📚 Documentation preview 📚: https://meltano-sdk--2716.org.readthedocs.build/en/2716/

[codspeed-hq]

CodSpeed Performance Report

Merging #2716 will not alter performance

_{Comparing edgarrmondragon/refactor/stop-testing-sqlalchemy-1 (2e1472b) with main (9004c41)}

Summary

✅ 6 untouched benchmarks

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 90.71%. Comparing base (9004c41) to head (2e1472b).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2716   +/-   ##
=======================================
  Coverage   90.71%   90.71%           
=======================================
  Files          62       62           
  Lines        5021     5021           
  Branches      641      641           
=======================================
  Hits         4555     4555           
  Misses        325      325           
  Partials      141      141           

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