Zammad: Add redis as dependecy for Zammad 6

Remove yarn - it will be installed by rake assets:precompile

tasks/packages.yml

@@ -33,18 +33,6 @@
       - patch
       - pkg-config
       - rbenv
+      - redis
       - sudo
-      - yarnpkg
       - zlib1g-dev
-
-# https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=940511
-- name: "packages | ensure cmdtest is not installed"
-  apt:
-    name: cmdtest
-    state: absent
-
-- name: "packages | Erstelle yarn-Symlink"
-  file:
-    src: /usr/bin/yarnpkg
-    dest: /usr/local/bin/yarn
-    state: link

tasks/webserver.yml

@@ -2,11 +2,14 @@
   template:
     src: nginx-site.j2
     dest: "{{ zammad_webserver_configuration }}"
+  notify: reload nginx
 
 - name: "webserver: Kofiguration aktivieren"
   file:
     src: "{{ zammad_webserver_configuration }}"
     dest: "/etc/nginx/sites-enabled/{{ zammad_domain }}"
     state: link
+  notify: reload nginx
+