Update dependency setuptools to v59.1.1

This MR contains the following updates:

Package	Type	Update	Change
setuptools	ironbank-pypi	minor	59.0.1 -> 59.1.1

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Release Notes

pypa/setuptools

v59.1.1

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Misc ^^^^

• #​2885: Fixed errors when encountering LegacyVersions.

v59.1.0

Compare Source

Changes ^^^^^^^

• #​2497: Update packaging to 21.2.
• #​2877: Back out deprecation of setup_requires and replace instead by a deprecation of setuptools.installer and fetch_build_egg. Now setup_requires is still supported when installed as part of a PEP 517 build, but is deprecated when an unsatisfied requirement is encountered.
• #​2879: Bump packaging to 21.2.

Documentation changes ^^^^^^^^^^^^^^^^^^^^^

• #​2867: PNG/ICO images replaced with SVG in the docs.
• #​2867: Added support to SVG "favicons" via "in-tree" Sphinx extension.

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