Update dependency pytest-cov to v7

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
pytest-cov (changelog)	^4.1.0 || ^5.0.0 || ^6.0.0 → ^4.1.0 || ^5.0.0 || ^6.0.0 || ^7.0.0

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Release Notes

pytest-dev/pytest-cov (pytest-cov)

v7.1.0

Compare Source

• Fixed total coverage computation to always be consistent, regardless of reporting settings.
  Previously some reports could produce different total counts, and consequently can make --cov-fail-under behave different depending on
  reporting options.
  See #&#8203;641 <https://github.com/pytest-dev/pytest-cov/issues/641>_.

• Improve handling of ResourceWarning from sqlite3.

  The plugin adds warning filter for sqlite3 ResourceWarning unclosed database (since 6.2.0).
  It checks if there is already existing plugin for this message by comparing filter regular expression.
  When filter is specified on command line the message is escaped and does not match an expected message.
  A check for an escaped regular expression is added to handle this case.

  With this fix one can suppress ResourceWarning from sqlite3 from command line::

  pytest -W "ignore:unclosed database in <sqlite3.Connection object at:ResourceWarning" ...

• Various improvements to documentation.
  Contributed by Art Pelling in #&#8203;718 <https://github.com/pytest-dev/pytest-cov/pull/718>_ and
  "vivodi" in #&#8203;738 <https://github.com/pytest-dev/pytest-cov/pull/738>.
  Also closed #&#8203;736 <https://github.com/pytest-dev/pytest-cov/issues/736>.

• Fixed some assertions in tests.
  Contributed by in Markéta Machová in #&#8203;722 <https://github.com/pytest-dev/pytest-cov/pull/722>_.

• Removed unnecessary coverage configuration copying (meant as a backup because reporting commands had configuration side-effects before coverage 5.0).

v7.0.0

Compare Source

• Dropped support for subprocesses measurement.

  It was a feature added long time ago when coverage lacked a nice way to measure subprocesses created in tests.
  It relied on a .pth file, there was no way to opt-out and it created bad interations
  with coverage's new patch system <https://coverage.readthedocs.io/en/latest/config.html#run-patch>_ added
  in 7.10 <https://coverage.readthedocs.io/en/7.10.6/changes.html#version-7-10-0-2025-07-24>_.

  To migrate to this release you might need to enable the suprocess patch, example for .coveragerc:

  .. code-block:: ini

  [run]
  patch = subprocess

  This release also requires at least coverage 7.10.6.

• Switched packaging to have metadata completely in pyproject.toml and use hatchling <https://pypi.org/project/hatchling/>_ for
  building.
  Contributed by Ofek Lev in #&#8203;551 <https://github.com/pytest-dev/pytest-cov/pull/551>_
  with some extras in #&#8203;716 <https://github.com/pytest-dev/pytest-cov/pull/716>_.

• Removed some not really necessary testing deps like six.

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