Update dependency coverage to v7.4.3

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
coverage	==7.4.1 -> ==7.4.3

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Release Notes

nedbat/coveragepy (coverage)

v7.4.3

Compare Source

• Fix: in some cases, coverage could fail with a RuntimeError: "Set changed
  size during iteration." This is now fixed, closing issue 1733_.

.. _issue 1733:https://github.com/nedbat/coveragepy/issues/17333

.. _changes_7-4-2:

v7.4.2

Compare Source

• Fix: setting COVERAGE_CORE=sysmon no longer errors on 3.11 and lower,
  thanks Hugo van Kemenade <pull 1747_>_. It now issues a warning that
  sys.monitoring is not available and falls back to the default core instead.

.. _pull 1747:https://github.com/nedbat/coveragepy/pull/17477

.. _changes_7-4-1:

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