feat: add organization delete command to cli (#21940)

The API endpoints existed for this already, so this PR just adds CLI
functionality which uses those API endpoints.

closes #21891 

Generated with the help of Mux

cli/organization.go

@@ -24,6 +24,7 @@ func (r *RootCmd) organizations() *serpent.Command {
 		Children: []*serpent.Command{
 			r.showOrganization(orgContext),
 			r.createOrganization(),
+			r.deleteOrganization(orgContext),
 			r.organizationMembers(orgContext),
 			r.organizationRoles(orgContext),
 			r.organizationSettings(orgContext),