(SERVER-2848) Ship to puppet7 repos
(SERVER-2848) Ship to puppet7 repos

The `main` branch will be the target for Platform 7 work, so this commit
updates the repos we publish to from puppet6 to puppet7.

puppetlabs/puppetserver,puppetlabs/puppet-server,puppetlabs/puppetserver,puppetlabs/puppetserver,puppetlabs/puppetserver,puppetlabs/puppet-server,puppetlabs/puppet-server