[issue38316] docs: Code object's "co_stacksize" field is described with mistake

[Batuhan]

Change by Batuhan <batuhanosmantaskaya at gmail.com>:


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pull_requests: +17128
pull_request: https://github.com/python/cpython/pull/17660

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue38316>
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