Fix functional test job

* Pin minikube to 1.22.0

Version 1.23.0 is failing with
  error: unable to recognize "deploy/crds/zuul-ci_v1alpha2_zuul_crd.yaml":
    no matches for kind "CustomResourceDefinition" in version "apiextensions.k8s.io/v1beta1"

Until we learn more, pin to the previously working k8s version.

* Add debug log-level to the podman login test command

This change should improve the test failure debugging where it
currently may just prints "Shutting down, got signal: Terminated".

* Remove "https://" from registry login

f8136e70f9
Added path-based authentication to "podman login" which they argue
is incompatible with including https:// in the registry identifier.
Doing so now produces an error.

Co-Authored-By: Tristan Cacqueray <tdecacqu@redhat.com>
Change-Id: Ic44b56a2eb6ac15cc5f4af5312fa4e3956d6e457

.zuul.yaml

@@ -11,6 +11,7 @@
       # see: https://github.com/eclipse/che/issues/8134
       docker_userland_proxy: false
       container_runtime: docker
+      minikube_version: v1.22.0  # NOTE(corvus): 1.23.0 failed with no matches for kind "CustomResourceDefinition" in version "apiextensions.k8s.io/v1beta1"
 
 - job:
     description: Operator integration tests with Kubernetes

playbooks/zuul-operator-functional/tasks/test_registry.yaml

@@ -11,7 +11,7 @@
             containers:
             - name: test-registry
               image: quay.io/containers/podman:latest
-              command: ['podman', 'login', '--tls-verify=false', 'https://zuul-registry/', '-u', 'testuser', '-p', 'testpass']
+              command: ['podman', '--log-level=debug', 'login', '--tls-verify=false', 'zuul-registry', '-u', 'testuser', '-p', 'testpass']
               securityContext:
                 privileged: true
             restartPolicy: Never