zuul-web: mount /var/lib/zuul/

When a connection requires a SSH key, it is stored in
/var/lib/zuul/.ssh - which isn't exposed to zuul-web, resulting in
errors when the configuration is loaded.

Change-Id: Icd9333644b2f5d173316dbb9cba7ba4395925210

ansible/roles/sf-zuul/defaults/main.yml

@@ -76,6 +76,7 @@ zuul_components:
     image: "quay.io/software-factory/zuul-web-ubi:{{ zuul_container_version }}"
     params: >-
       {{ zuul_components_default_params }}
+      --volume /var/lib/zuul/:/var/lib/zuul/:z
       {% if sf_zuul_web_additional_params is defined %}
       {{ sf_zuul_web_additional_params }}
       {% endif %}