Update pytest-cov requirement from ^6.0.0 to ^7.0.0

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@v6.0.0...v7.0.0)

---
updated-dependencies:
- dependency-name: pytest-cov
  dependency-version: 7.0.0
  dependency-type: direct:development
...

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

Author: dependabot[bot]

pyproject.toml

@@ -15,7 +15,7 @@ psycopg = { extras = ['binary'], version = '^3.2.4' }
 
 [tool.poetry.group.dev.dependencies]
 pytest = "8.4.1"
-pytest-cov = "^6.0.0"
+pytest-cov = "^7.0.0"
 ruff = "^0.12.2"
 httpx = "0.28.1"