MAINT Try coverage config specify pyproject.toml

[adam2392]

Changes proposed in this pull request:

• Tries to fix the CI test coverage report

ref: https://github.com/nedbat/coveragepy/issues/512

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• [ ] I've updated or added any relevant docstrings following the syntax described in the Writing docstrings section of the CONTRIBUTING docs.
• [ ] If this PR fixes a bug, I've added a test that will fail without my fix.
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[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 76.79%. Comparing base (638dd7c) to head (5952b8f). Report is 8 commits behind head on main.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #285 +/- ## =========================================== - Coverage 90.04% 76.79% -13.26% =========================================== Files 54 25 -29 Lines 5105 2267 -2838 Branches 0 409 +409 =========================================== - Hits 4597 1741 -2856 + Misses 508 402 -106 - Partials 0 124 +124 ```

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