Update dependency coverage to v6.4.1

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
coverage	==6.4 -> ==6.4.1

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Release Notes

nedbat/coveragepy

v6.4.1

Compare Source

• Greatly improved performance on PyPy, and other environments that need the
  pure Python trace function. Thanks, Carl Friedrich Bolz-Tereick (pull 1381_ and pull 1388). Slightly improved performance when using the C
  trace function, as most environments do. Closes issue 1339.

• The conditions for using tomllib from the standard library have been made
  more precise, so that 3.11 alphas will continue to work. Closes issue 1390_.

.. _issue 1339:https://github.com/nedbat/coveragepy/issues/13399
.. _pull 1381https://github.com/nedbat/coveragepy/pull/138181
.. _pull 138https://github.com/nedbat/coveragepy/pull/1388388
.. _issue 13https://github.com/nedbat/coveragepy/issues/13901390

.. _changes_64:

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[codecov-commenter]

Codecov Report

Merging #66 (2ea7347) into main (72000c4) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main      #66   +/-   ##
=======================================
  Coverage   96.96%   96.96%           
=======================================
  Files           7        7           
  Lines         462      462           
=======================================
  Hits          448      448           
  Misses         14       14           

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