chore: Do not use poetry.lock in CI

[edgarrmondragon]

This unblocks removing the urllib3<2 constraint that we use due to python-poetry/poetry-plugin-export#176.

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📚 Documentation preview 📚: https://meltano-sdk--2630.org.readthedocs.build/en/2630/

[codspeed-hq]

CodSpeed Performance Report

Merging #2630 will not alter performance

_{Comparing edgarrmondragon/chore/remove-poetry-lock (1c063e3) with main (2a3d3fa)}

Summary

✅ 6 untouched benchmarks

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 89.67%. Comparing base (3de2b98) to head (1c063e3).
Report is 139 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2630   +/-   ##
=======================================
  Coverage   89.67%   89.67%           
=======================================
  Files          58       58           
  Lines        4854     4854           
  Branches      950      950           
=======================================
  Hits         4353     4353           
  Misses        350      350           
  Partials      151      151           

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