KDP-1761: Upgrade to Pydantic v2

[PaulVanSchayck]

No description provided.

[codecov-commenter]

Codecov Report

Patch coverage: 100.00% and project coverage change: -0.36% ⚠️

Comparison is base (4c49b56) 94.89% compared to head (44c7a28) 94.54%.
Report is 9 commits behind head on master.

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Additional details and impacted files

@@            Coverage Diff             @@
##           master       #2      +/-   ##
==========================================
- Coverage   94.89%   94.54%   -0.36%     
==========================================
  Files           9        9              
  Lines         294      275      -19     
==========================================
- Hits          279      260      -19     
  Misses         15       15              

Flag	Coverage Δ
unittests	94.54% <100.00%> (-0.36%)	⬇️

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Files Changed	Coverage Δ
src/covjson_pydantic/base_models.py	100.00% <100.00%> (ø)
src/covjson_pydantic/coverage.py	100.00% <100.00%> (ø)
src/covjson_pydantic/domain.py	94.94% <100.00%> (-0.11%)	⬇️
src/covjson_pydantic/i18n.py	100.00% <100.00%> (ø)
src/covjson_pydantic/ndarray.py	89.18% <100.00%> (-0.56%)	⬇️
src/covjson_pydantic/observed_property.py	100.00% <100.00%> (ø)
src/covjson_pydantic/parameter.py	94.28% <100.00%> (-0.16%)	⬇️
src/covjson_pydantic/reference_system.py	91.17% <100.00%> (-0.26%)	⬇️
src/covjson_pydantic/unit.py	94.11% <100.00%> (ø)

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