[docs] [issue40304] Classes created using type() don't need to explicitly inherit from object

Change by miss-islington mariatta.wijaya+miss-islington@gmail.com:

---------- keywords: +patch nosy: +miss-islington nosy_count: 3.0 -> 4.0 pull_requests: +23118 stage: -> patch review pull_request: https://github.com/python/cpython/pull/24295

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