feat: update min python version to >= 3.10 and update typing hints

[vincentsarago]

closes #215

[codecov-commenter]

Codecov Report

❌ Patch coverage is 98.93617% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 95.51%. Comparing base (0454ec8) to head (f1e05e5).

Files with missing lines	Patch %	Lines
stac_pydantic/shared.py	96.96%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #221      +/-   ##
==========================================
- Coverage   95.68%   95.51%   -0.17%     
==========================================
  Files          25       25              
  Lines         649      647       -2     
==========================================
- Hits          621      618       -3     
- Misses         28       29       +1     

Flag	Coverage Δ
unittests	95.51% <98.93%> (-0.17%)	⬇️

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[gadomski]

LGTM, though we could also add UP to the ruff rules to keep things up-to-date in the future.