Fix content-hash; add pre-commit-check for poetry.

[rafalkrupinski]

The content-hash entry was invalid.

Also added checks for poetry to pre-commit and fixed formatting of .pre-commit-config.yaml

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 100.00%. Comparing base (d306553) to head (298d9fb).
Report is 2 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff            @@
##              main     #2142   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           38        38           
  Lines         4250      4250           
  Branches       984       984           
=========================================
  Hits          4250      4250           

Flag	Coverage Δ
unittests	99.67% <ø> (ø)

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[codspeed-hq]

CodSpeed Performance Report

Merging #2142 will not alter performance

_{Comparing python-lapidary:fix-poetry-lock (298d9fb) with main (d306553)}

Summary

✅ 30 untouched benchmarks