Update dependency coverage to v7.6.5

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
coverage	==7.6.4 -> ==7.6.5

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Release Notes

nedbat/coveragepy (coverage)

v7.6.5

• fix: fine-tuned the exact Python version (3.12.6) when exiting from with
  statements changed how they traced. This affected whether people saw the
  fix for issue 1880_.

• fix: isolate our code more from mocking in the os module that in rare cases
  can cause bizarre behavior <pytest-cov-666_>_.

• refactor: some code unreachable code paths in parser.py were changed to
  asserts. If you encounter any of these, please let me know!

.. _pytest-cov-666:https://github.com/pytest-dev/pytest-cov/issues/6666

.. _changes_7-6-4:

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