chore(deps): update pytest-cov requirement from <5,>=4.0.0 to >=4.0.0,<8

Updates the requirements on [pytest-cov](https://github.com/pytest-dev/pytest-cov) to permit the latest version.
- [Changelog](https://github.com/pytest-dev/pytest-cov/blob/master/CHANGELOG.rst)
- [Commits](pytest-dev/pytest-cov@v4.0.0...v7.1.0)

---
updated-dependencies:
- dependency-name: pytest-cov
  dependency-version: 7.1.0
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

pyproject.toml

@@ -76,7 +76,7 @@ dev = [
     "validators>=0.20.0,<0.21",
     "pytest-repeat>=0.9.1,<0.10",
     "coverage>=7.2.3,<8",
-    "pytest-cov>=4.0.0,<5",
+    "pytest-cov>=4.0.0,<8",
     "Sphinx>=5.1.1,<8.0.0",
     "sphinx-copybutton>=0.5.0,<0.6",
     "sphinx-autodoc-typehints>=1.19.2,<2",