fix: use ClassVar

Co-authored-by: Sebastian Rittau <sebastian.rittau@zfutura.de>

Author: hoel-bagard

stubs/behave/behave/runner.pyi

@@ -6,8 +6,8 @@ from typing import ParamSpec
 _P = ParamSpec("_P")
 
 class Context:
-    LAYER_NAMES: list[str]
-    FAIL_ON_CLEANUP_ERRORS: bool
+    LAYER_NAMES: ClassVar[list[str]]
+    FAIL_ON_CLEANUP_ERRORS: ClassVar[bool]
 
     feature: Incomplete
     scenario: Incomplete