⬆️ Update dependency pytest-cov to v6 (#35)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

pyproject.toml

@@ -41,7 +41,7 @@ dev-dependencies = [
     "pylint==3.3.1",
     "pytest-aiohttp>=1.0.5",
     "pytest-asyncio==0.24.0",
-    "pytest-cov==5.0.0",
+    "pytest-cov==6.0.0",
     "pytest-timeout==2.3.1",
     "pytest==8.3.3",
     "syrupy>=4.7.1",