Add config for deploying OIDC settings using Ansible

ansible/roles/hepto/templates/config.j2

@@ -11,3 +11,7 @@ HEPTO_IP={{ node_ip }}
 {% if node_gw is defined %}
 HEPTO_GW={{ node_gw }}
 {% endif %}
+{% if oidc is defined %}
+HEPTO_ISSUER={{ oidc.issuer }}
+HEPTO_CLIENTID={{ oidc.clientid }}
+{% endif %}