postgres: fix pooler config, tested

postgres/config/clusters/main.yaml

@@ -59,4 +59,11 @@ spec:
       comment: netmaker
       login: true
       passwordSecret:
-        name: netmaker-auth
+        name: netmaker-auth
+    - name: pooler
+      ensure: present
+      comment: pooler
+      login: true
+      superuser: true
+      passwordSecret:
+        name: pgbouncer-auth-query