MAINT: Update pytest-cov requirement from <4.2,>=4.0.0 to >=4.0.0,<5.1

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...v5.0.0)

---
updated-dependencies:
- dependency-name: pytest-cov
  dependency-type: direct:production
...

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

pyproject.toml

@@ -47,7 +47,7 @@ tests = [
     "osmnx>=1.1.0,<1.10",
     "pandas>=1.1.0,<2.3",
     "pytest>=7.4.0,<8.2",
-    "pytest-cov>=4.0.0,<4.2",
+    "pytest-cov>=4.0.0,<5.1",
     "pytest-xdist>=3.5.0,<3.6",
     "pyedb>=0.4.0,<0.5; python_version == '3.7'",
     "pyedb>=0.5.0,<0.6; python_version > '3.7'",