Switch from pytest.ini to pyproject.toml

Author: dolfinus

pyproject.toml

@@ -107,6 +107,12 @@ ignore = ["ARG", "ANN", "A002", "COM812", "D", "TD", "FIX002", "PLC0415"]
     "DTZ005",
 ]
 
+[pytest.ini_options]
+markers = [
+    "all: mark all tests",
+    "important: mark only important tests (e.g. functions which depend on OS and Python version)",
+]
+
 [tool.mypy]
 follow_imports = "silent"
 ignore_missing_imports = true