chore(deps): update dependency zope.interface to v6.4.post2

[zon-renovate]

This PR contains the following updates:

Package	Update	Change
zope.interface	minor	==6.1 -> ==6.4.post2

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Release Notes

zopefoundation/zope.interface (zope.interface)

v6.4.post2

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• Publish missing Windows wheels, second attempt.
  (#&#8203;295 <https://github.com/zopefoundation/zope.interface/issues/295>_)

v6.4.post1

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• Publish missing Windows wheels.
  (#&#8203;295 <https://github.com/zopefoundation/zope.interface/issues/295>_)

v6.4.post0

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• The sdist of version 6.4 was uploaded to PyPI as
  zope_interface-6.4.tar.gz instead of zope.interface-6.4-py2.tar.gz
  which cannot be installed by zc.buildout. This release is a re-release
  of version 6.4 with the correct sdist name.
  (#&#8203;298 <https://github.com/zopefoundation/zope.interface/issues/298>_)

v6.4

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• Publish missing Windows wheels, second attempt.
  (#&#8203;295 <https://github.com/zopefoundation/zope.interface/issues/295>_)

v6.3

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• Add preliminary support for Python 3.13 as of 3.13a6.

v6.2

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• Add preliminary support for Python 3.13 as of 3.13a3.

• Add support to use the pipe (|) syntax for typing.Union.
  (#&#8203;280 <https://github.com/zopefoundation/zope.interface/issues/280>_)

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