build(deps-dev): update pytest-cov requirement (#117)

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>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

setup.py

@@ -34,7 +34,7 @@
     tests_require=[
         'pytest>=7.2.2, <9.1.0',
         'coverage>=7.2.2, <7.14.0',
-        'pytest-cov>=4.0, <7.1',
+        'pytest-cov>=4.0, <7.2',
         'testfixtures>=8.3.0, <= 10.0.0'
     ]
 )