fix: various rsyslog deploy problems

roles/rsyslog/tasks/main.yaml

@@ -2,7 +2,6 @@
   apt:
     pkg:
      - rsyslog
-     - rsyslog-pgsql
     state: present
 
 - name: Install rsyslog psql on master
@@ -12,6 +11,13 @@
     state: present
   when: monitoring_master
 
+- name: Ensure no rsyslog psql on non-master
+  apt:
+    pkg:
+     - rsyslog-pgsql
+    state: absent
+  when: not monitoring_master
+
 - name: Rsyslog Main config
   template:
     src: rsyslog.conf.j2