gh-104180: Read SOCKS proxies from macOS System Configuration (#104181)

read SOCKS proxies from macOS System Configuration in ``urllib.request``.

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Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com>
Co-authored-by: Oleg Iarygin <oleg@arhadthedev.net>