feat: add pytest integration

[adriangb]

No description provided.

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[codecov-commenter]

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Codecov Report

❌ Patch coverage is 78.84615% with 11 lines in your changes missing coverage. Please review.
✅ Project coverage is 97.55%. Comparing base (7f811fe) to head (5e5a2f7).
⚠️ Report is 155 commits behind head on main.

Files with missing lines	Patch %	Lines
di/pytest.py	63.33%	10 Missing and 1 partial ⚠️
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Additional details and impacted files

@@            Coverage Diff             @@
##             main      #43      +/-   ##
==========================================
- Coverage   97.93%   97.55%   -0.39%     
==========================================
  Files          61       63       +2     
  Lines        2032     2084      +52     
  Branches      300      305       +5     
==========================================
+ Hits         1990     2033      +43     
- Misses         31       40       +9     
  Partials       11       11              

Files with missing lines	Coverage Δ
tests/test_pytest.py	100.00% <100.00%> (ø)
di/pytest.py	63.33% <63.33%> (ø)

... and 1 file with indirect coverage changes

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