patch podman login: omit certdir by default (#250)

* podman login: omit certdir value by default
* podman login: disable log

Author: dometto

src/molecule_plugins/podman/playbooks/create.yml

@@ -13,6 +13,8 @@
         certdir: >-
           {% if lookup('env', 'DOCKER_CERT_PATH') %}
           {{ item.cert_path | default(lookup('env', 'DOCKER_CERT_PATH') + '/cert.pem') }}
+          {% else %}
+          {{ item.cert_path | default(omit)}}
           {% endif %}
         executable: "{{ podman_exec }}"
         username: "{{ item.registry.credentials.username }}"
@@ -30,6 +32,7 @@
         - item.registry.credentials is defined
         - item.registry.credentials.username is defined
       changed_when: false
+      no_log: true
 
     - name: Check presence of custom Dockerfiles
       ansible.builtin.stat: