_imp.create_dynamic returns ModuleType (#7568)

Author: collinanderson

stdlib/_imp.pyi

@@ -7,7 +7,7 @@ if sys.version_info >= (3, 7):
     check_hash_based_pycs: str
 
 def create_builtin(__spec: ModuleSpec) -> types.ModuleType: ...
-def create_dynamic(__spec: ModuleSpec, __file: Any = ...) -> None: ...
+def create_dynamic(__spec: ModuleSpec, __file: Any = ...) -> types.ModuleType: ...
 def acquire_lock() -> None: ...
 def exec_builtin(__mod: types.ModuleType) -> int: ...
 def exec_dynamic(__mod: types.ModuleType) -> int: ...