fix(minion): replace literals with `rootuser` & `rootgroup` from map

salt/minion.sls

                     {% else %}
     - skip_verify: True
                     {% endif %}
-    - user: root
-    - group: wheel
+    - user: {{ salt_settings.rootuser }}
+    - group: {{ salt_settings.rootgroup }}
     - mode: '0644'
     - unless:
       - test -n "{{ salt_settings.version }}" && '/opt/salt/bin/salt-minion --version=.*{{ salt_settings.version }}.*'
         {%- if grains['kernel'] in ['FreeBSD', 'OpenBSD', 'NetBSD'] %}
         wheel
         {%- else %}
-        root
+        {{ salt_settings.rootgroup }}
         {%- endif %}
     {%- if grains['kernel'] != 'Windows' %}
     - mode: 640
         {%- if grains['kernel'] in ['FreeBSD', 'OpenBSD', 'NetBSD'] %}
         wheel
         {%- else %}
-        root
+        {{ salt_settings.rootgroup }}
         {%- endif %}
     {%- if grains['kernel'] != 'Windows' %}
     - mode: 700
         {%- if grains['kernel'] in ['FreeBSD', 'OpenBSD', 'NetBSD'] %}
         wheel
         {%- else %}
-        root
+        {{ salt_settings.rootgroup }}
         {%- endif %}
     {%- if grains['kernel'] != 'Windows' %}
     - mode: 400
         {%- if grains['kernel'] in ['FreeBSD', 'OpenBSD', 'NetBSD'] %}
         wheel
         {%- else %}
-        root
+        {{ salt_settings.rootgroup }}
         {%- endif %}
     {%- if grains['kernel'] != 'Windows' %}
     - mode: 644