Fix saltstack.conf repo for FreeBSD

hshbase/apt/files/saltstack.conf

+SaltStack:{
+    url: "http://apt-proxy.it.hs-hannover.de:8080/repo.saltstack.com/freebsd/${ABI}/",
+    mirror_type: "http",
+    enabled: true
+    priority: 10
+}
+

hshbase/apt/proxy.sls

@@ -18,6 +18,18 @@ hsh_freebsd_apt_proxy:
     - mode: 644
     - user: root
     - group: wheel
+    - require:
+      - file: /usr/local/etc/pkg/repos
+
+hsh_freebsd_salt_apt_proxy:
+  file.managed:
+    - name: /usr/local/etc/pkg/repos/saltstack.conf
+    - source: salt://hshbase/apt/files/saltstack.conf
+    - mode: 644
+    - user: root
+    - group: wheel
+    - require:
+      - file: /usr/local/etc/pkg/repos
 
 {% elif grains['os'] == 'Debian' or grains['os'] == 'Ubuntu' %}
 hsh_debian_apt_proxy: