fix janus apt

tasks/janus.yml

@@ -1,9 +1,16 @@
 ---
-- name: install janus from deb file
+#- name: install janus from deb file
+#  apt:
+#    deb: "{{ signaling_janus_deb_target }}"
+#    state: "{% if cloud_update | bool %}latest{% else %}present{% endif %}"
+#    install_recommends: yes
+
+- name: install janus
   apt:
-    deb: "{{ signaling_janus_deb_target }}"
+    update_cache: yes
     state: "{% if cloud_update | bool %}latest{% else %}present{% endif %}"
     install_recommends: yes
+    pkg: janus
 
 - name: configure janus server
   lineinfile: