!!! TASK: Make kickstart:site command work with Neos 9.0

[ahaeslich]

Review instructions

Run ./flow kickstart:site My.Site and create a new site based on this package via ./flow site:create my-site My.Site My.Site:Document.Homepage.

Tested based on our Neos 9 Beta 10 Release.

Related Issue: #4016

Upgrade instructions

Custom packages implementing the SitePackageGeneratorInterface will need to be adjusted as we don't provide the siteName anymore.

Checklist

• [ ] Code follows the PSR-2 coding style
• [ ] Tests have been created, run and adjusted as needed
• [x] The PR is created against the lowest maintained branch
• [ ] Reviewer - PR Title is brief but complete and starts with FEATURE|TASK|BUGFIX
• [ ] Reviewer - The first section explains the change briefly for change-logs
• [ ] Reviewer - Breaking Changes are marked with !!! and have upgrade-instructions

[ahaeslich]

We briefly talked about the site kickstarter in our last weekly and we might want to do a follow up PR that e.g. includes an import as before. With this PR at least one can create a site package again.