message: fix up the slack messages
diff: },
  "actions": {
  "notify-slack": {
  - "throttle_period": "5m",
  + "throttle_period_in_millis": 300000,
  "slack": {
  "account": "monitoring",
  "message": {
  "to": [
  "#lagoon-dev-alerts"
  ],
  + "text": ":bangbang: :rotating_light:",
  + "attachments": [
  + {
  + "color": "danger",
  + "title": "RabbitMQ Connection Errors",
  + "title_link": "",
  "text": "Connection errors from {{#ctx.payload.aggregations.group_by_service.buckets}}{{key}} {{/ctx.payload.aggregations.group_by_service.buckets}}"
  }
  + ]
  + }
  }
  }
  }
  