[issue40506] add support for os.Pathlike filenames in zipfile.ZipFile.writestr

[Cheryl Sabella]

Change by Cheryl Sabella <cheryl.sabella at gmail.com>:


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nosy: +serhiy.storchaka, twouters
versions: +Python 3.10 -Python 3.9

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue40506>
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