dependabot-pip: update pytest-cov requirement

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@v6.1.1...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

@@ -28,7 +28,7 @@ Django = "^4.0"
 
 [tool.poetry.group.dev.dependencies]
 pytest = "^8.3.4"           # Framework for testing
-pytest-cov = "^6.1.1"       # Code coverage for tests
+pytest-cov = ">=6.1.1,<8.0.0"       # Code coverage for tests
 black = "^24.8.0"           # Code formatter
 flake8 = "^7.2.0"           # Linter for code quality
 mypy = "^1.15.0"            # Static type checker