yaml: allow ReadableBuffer in represent_binary (#9701)

Author: JelleZijlstra

stubs/PyYAML/yaml/representer.pyi

@@ -1,5 +1,5 @@
 import datetime
-from _typeshed import Incomplete, SupportsItems
+from _typeshed import Incomplete, ReadableBuffer, SupportsItems
 from collections.abc import Callable, Iterable, Mapping
 from types import BuiltinFunctionType, FunctionType, ModuleType
 from typing import Any, ClassVar, NoReturn, TypeVar
@@ -40,7 +40,7 @@ class SafeRepresenter(BaseRepresenter):
     def ignore_aliases(self, data) -> bool: ...
     def represent_none(self, data) -> ScalarNode: ...
     def represent_str(self, data: str) -> ScalarNode: ...
-    def represent_binary(self, data: bytes) -> ScalarNode: ...
+    def represent_binary(self, data: ReadableBuffer) -> ScalarNode: ...
     def represent_bool(self, data: bool) -> ScalarNode: ...
     def represent_int(self, data: int) -> ScalarNode: ...
     def represent_float(self, data: float) -> ScalarNode: ...