fix(packaging): agent default configuration

misc/packaging/common/config-agent.yml

@@ -1,4 +1,6 @@
 agent:
+  serverUrl: http://127.0.0.1:3000
+  privateKeyPath: /var/lib/emissary/agent-key.json
   reconciliationInterval: 5
   controllers:
     persistence:
@@ -6,10 +8,14 @@ agent:
       stateFile: /var/lib/emissary/state.json
     spec:
       enabled: true
-      serverUrl: http://192.168.0.45:3000
     gateway:
       enabled: true
     uci:
       enabled: true
       binPath: uci
       configBackupFile: /var/lib/emissary/uci-backup.conf
+  collectors:
+    - name: uname
+      command: uname
+      args:
+        - -a