Configure tests to mark chat quality tests & filter unhelpful warnings

- Mark chat quality tests, register custom mark for chat quality
- Filter unhelpful deprecation warnings from within dateparser library
- Error if tests use unregistered marks

pyproject.toml

@@ -95,3 +95,9 @@ warn_unused_ignores = false
 
 [tool.black]
 line-length = 120
+
+[tool.pytest.ini_options]
+addopts = "--strict-markers"
+markers = [
+    "chatquality: Evaluate chatbot capabilities and quality",
+]