Update dependency setuptools to v63.4.0

This MR contains the following updates:

Package	Update	Change
setuptools	minor	==63.3.0 -> ==63.4.0

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Release Notes

pypa/setuptools

v63.4.0

Compare Source

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

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