Update pytest-cov requirement in the pip group (#5)

Updates the requirements on [pytest-cov](https://github.com/pytest-dev/pytest-cov) to permit the latest version.

Updates `pytest-cov` to 7.1.0
- [Changelog](https://github.com/pytest-dev/pytest-cov/blob/master/CHANGELOG.rst)
- [Commits](pytest-dev/pytest-cov@v6.0.0...v7.1.0)

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

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

Author: dependabot[bot]

pyproject.toml

@@ -33,7 +33,7 @@ dynamic = ["version"]
 [project.optional-dependencies]
 dev = [
   "pytest>=9.0.0,<10",
-  "pytest-cov>=6.0.0,<7"
+  "pytest-cov>=6.0.0,<8"
 ]
 
 [project.scripts]