Update dependency coverage to v7.4.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
coverage	==7.3.4 -> ==7.4.0

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Release Notes

nedbat/coveragepy (coverage)

v7.4.0

• In Python 3.12 and above, you can try an experimental core based on the new
  :mod:sys.monitoring <python:sys.monitoring> module by defining a
  COVERAGE_CORE=sysmon environment variable. This should be faster, though
  plugins and dynamic contexts are not yet supported with it. I am very
  interested to hear how it works (or doesn't!) for you.

.. _changes_7-3-4:

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