chore(pytest): correct typo in marker description

pyproject.toml

@@ -88,7 +88,7 @@ testpaths = ["tests"]
 python_files = ["test_*.py"]
 addopts = "--strict-markers --suppress-no-test-exit-code --color=yes --cov-branch -v"
 filterwarnings = "error"
-markers = "webtest: mark a test as requiring internet connecttion"
+markers = "webtest: mark a test as requiring internet connection"
 
 [tool.mypy]
 exclude = ["^build/", "^venv/"]