chore(deps): update dependency tox to v4.20.0 (#191)

Co-authored-by: Renovate Bot <renovate@whitesourcesoftware.com>

Author: github-renovate-self-hosted

poetry.lock

@@ -63,7 +63,7 @@ pytest = "8.3.3"
 pytest-asyncio = "0.24.0"
 pytest-cov = "5.0.0"
 ruff = "0.6.5"
-tox = "4.18.1"
+tox = "4.20.0"
 
 [tool.poetry.extras]
 asyncpg = ["asyncpg"]