Update dependency setuptools to v59.4.0

This MR contains the following updates:

Package	Type	Update	Change
setuptools	ironbank-pypi	minor	59.2.0 -> 59.4.0

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Release Notes

pypa/setuptools

v59.4.0

Compare Source

Changes ^^^^^^^

• #​2893: Restore deprecated support for newlines in the Summary field.

v59.3.0

Compare Source

Changes ^^^^^^^

• #​2902: Merge with pypa/distutils@85db7a4.

Misc ^^^^

• #​2906: In ensure_local_distutils, re-use DistutilsMetaFinder to load the module. Avoids race conditions when _distutils_system_mod is employed.

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