anubis: add group/user

Normally the fedora anubis package uses systemd's DynamicUser, which is
fine, but we need to setup a env file only readable by anubis because it
contains a private key.

So, just add group/user here and the unit will use those instead.

Signed-off-by: Kevin Fenzi <kevin@scrye.com>

roles/anubis/tasks/main.yml

@@ -6,6 +6,23 @@
   tags:
     - anubis
 
+- name: Add anubis group
+  ansible.builtin.group:
+    name: anubis
+    state: present
+  tags:
+  - config
+  - anubis
+
+- name: Add anubis user
+  ansible.builtin.user:
+    name: anubis
+    group: anubis
+    system: yes
+  tags:
+  - config
+  - anubis
+
 - name: Install httpd config for backend listener
   ansible.builtin.copy:
     src: "httpd/{{ item }}"