Update cookie* references to current Volto 18.0.0-alpha.43 release

[stevepiercy]

Description

With the release of Volto 18.0.0-alpha.43, we need to review and potentially update or supplement references to cookiecutter-plone-starter, cookiecutter-zope-instance, and @plone/generator-volto with Cookieplone.

• https://6.docs.plone.org/install/manage-add-ons-packages.html

See also:

• Update cookie* references to current Volto 18.0.0-alpha.43 release volto#6289
• Add "create project" docs for cookieplone #1714