Posting adaptivecard to teams incoming webhooks

troyhart 

My original message was truncated. Here's the payload that will successfully POST because it is missing the `actions` section:

{
  "type": "message",
  "attachments": [
    {
      "contentType": "application/vnd.microsoft.card.adaptive",
      "contentUrl": null,
      "content": {
        "type": "AdaptiveCard",
        "schema": "http://adaptivecards.io/schemas/adaptive-card.json",
        "version": "1.6",
        "body": [
          {
            "text": "🚀 testing",
            "wrap": true,
            "size": "Large",
            "weight": "Bolder",
            "color": "Good",
            "type": "TextBlock"
          },
          {
            "facts": [
              {
                "title": "DeploymentId: ",
                "value": "dep-id-123"
              }
            ],
            "type": "FactSet"
          }
        ]
      }
    }
  ]
}