The zone transfer request set command was missing the
--target-project-id option so you cannot change the target project ID of
a zone transfer request after creation with the CLI.
This option is supported by the API and documented in the API reference
guide.
This patch adds this option.
Closes-Bug: #1977625
Change-Id: Idd570a5aef57c06971db2450fdfb823cf0c07bfd