feat: Rename compute.yml to login.yml for login build

Change the references to compute.yml in the packer template to use
login.yml

openstack-login/nodeimage.pkr.hcl

@@ -48,7 +48,7 @@ build {
     use_proxy     = false
     user          = var.ssh_username
     groups        = ["compute"]
-    playbook_file = "./ansible/compute.yml"
+    playbook_file = "./ansible/login.yml"
     roles_path    = "./ansible/roles"
     extra_arguments = [
       "--extra-vars", "root_ssh_key='${var.root_ssh_key}'"