Update tox requirement from <4,>=3 to >=3,<5

Updates the requirements on [tox](https://github.com/tox-dev/tox) to permit the latest version.
- [Release notes](https://github.com/tox-dev/tox/releases)
- [Changelog](https://github.com/tox-dev/tox/blob/main/docs/changelog.rst)
- [Commits](tox-dev/tox@3.0.0...4.4.5)

---
updated-dependencies:
- dependency-name: tox
  dependency-type: direct:development
...

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

Author: dependabot[bot]

setup.py

@@ -63,7 +63,7 @@ def read(path):
         sqlalchemy=['sqlalchemy>=1.0,<2.1',
                     'geojson>=2.5.0,<4',
                     'backports.zoneinfo<1; python_version<"3.9"'],
-        test=['tox>=3,<4',
+        test=['tox>=3,<5',
               'zope.testing>=4,<5',
               'zope.testrunner>=5,<6',
               'zc.customdoctests>=1.0.1,<2',