chore(deps): update dependency setuptools to v63.4.3

This MR contains the following updates:

Package	Update	Change
setuptools (changelog)	minor	==63.1.0 -> ==63.4.3

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Release Notes

pypa/setuptools

v63.4.3

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Misc ^^^^

• #​3496: Update to pypa/distutils@b65aa40 including more robust support for library/include dir handling in msvccompiler (pypa/distutils#​153) and test suite improvements.

v63.4.2

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Misc ^^^^

• #​3453: Bump vendored version of :pypi:pyparsing to 3.0.9.
• #​3481: Add warning for potential install_requires and extras_require misconfiguration in setup.cfg
• #​3487: Modified pyproject.toml validation exception handling to make relevant debugging information easier to spot.

v63.4.1

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Misc ^^^^

• #​3482: Sync with pypa/distutils@274758f, restoring compatibility shim in bdist.format_commands.

v63.4.0

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Changes ^^^^^^^

• #​2971: upload_docs command is deprecated once again.

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

• #​3443: Installed sphinx-hoverxref extension to show tooltips on internal an external references. -- by :user:humitos
• #​3444: Installed sphinx-notfound-page extension to generate nice 404 pages. -- by :user:humitos

Misc ^^^^

• #​3480: Merge with pypa/distutils@c397f4c

v63.3.0

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Changes ^^^^^^^

• #​3475: Merge with pypa/distutils@129480b, including substantial delinting and cleanup, some refactoring around compiler logic, better messaging in cygwincompiler (pypa/distutils#​161).

v63.2.0

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Changes ^^^^^^^

• #​3395: Included a performance optimization: setuptools.build_meta no longer tries to :func:compile the setup script code before :func:exec-ing it.

Misc ^^^^

• #​3435: Corrected issue in macOS framework builds on Python 3.9 not installed by homebrew (pypa/distutils#​158).

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