feat: support new model_validate_json() kwargs

Pydantic added by_alias and by_name keyword arguments to
BaseModel.model_validate_json in 2.11.1:

pydantic/pydantic@acb0f10

This caused mypy to report that that the Pydantic v2 CloudEvent did not
override model_validate_json() correctly. Our override now accepts these
newly-added arguments. They have no effect, as the implementation does
not use Pydantic to validate the JSON, but we also don't use field
aliases, so the only effect they could have in the superclass would be
to raise an error if they're both False.

Signed-off-by: Hal Blackburn <hwtb2@cam.ac.uk>

Author: h4l

cloudevents/pydantic/v2/event.py

@@ -175,6 +175,8 @@ def model_validate_json(
         *,
         strict: typing.Optional[bool] = None,
         context: typing.Optional[typing.Dict[str, Any]] = None,
+        by_alias: typing.Optional[bool] = None,
+        by_name: typing.Optional[bool] = None,
     ) -> "CloudEvent":
         return conversion.from_json(cls, json_data)