⬆️ Update setuptools to v68

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
setuptools (changelog)	==67.8.0 -> ==68.0.0

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Release Notes

pypa/setuptools

v68.0.0

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Breaking Changes
^^^^^^^^^^^^^^^^

• #​3948: Removed verification for existing depends.txt file (deprecated since v0.5a4).
• #​3948: Remove autofixing of broken .egg-info directories containing the -
  character in their base name (without suffix).
  They should no longer be produced by sufficiently new versions of setuptools
  (warning introduced in 2005).
• #​3948: Remove deprecated APIs in easy_install: get_script_args,
  get_script_header and get_writer.
  The direct usage of easy_install has been deprecated since v58.3.0,
  and the warnings regarding these APIs predate that version.
• #​3948: Removed egg_info.get_pkg_info_revision (deprecated since 2015).
• #​3948: Removed setuptools.dist._get_unpatched (deprecated since 2016)
• #​3948: Removed support for SVN in setuptools.package_index (deprecated since 2018).
• #​3948: Removed support for invalid pyproject.toml files.
  During the implementation of PEP 621, it was identified that some users were
  producing invalid files. As a transitional measure, the validation was relaxed
  for a few use cases. The grace period, however, came to an end.

Changes
^^^^^^^

• #​3760: Added symlink support to launcher for installed executables -- by :user:eugene-sevostianov-sc
• #​3926: Updated vendored packaging version from 23.0 to 23.1 -- by :user:MetRonnie
• #​3950: Implemented workaround for old versions of vswhere, which miss the
  -requiresAny parameter, such as the ones distributed together with Visual Studio 2017 < 15.6.
• #​3952: Changed DistutilsMetaFinder to skip spec_for_pip on Python >= 3.12.
• #​3952: Removed _distutils_hack.remove_shim on Python >= 3.12
  (since distutils was removed from the standard library,
  DistutilsMetaFinder cannot be disabled on Python >= 3.12).

Misc
^^^^

• #​3920: Add a link to deprecation warning in pkg_resources and improve
  stacklevel for better visibility.

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