Update Plugin Config

curl --request PUT \
  --url https://use.hoop.dev/api/plugins/{name}/config \
  --header 'Content-Type: application/json' \
  --data '{
  "envvars": {
    "SLACK_APP_TOKEN": "eC1hcHAtdG9rZW4=",
    "SLACK_BOT_TOKEN": "eG94Yi10b2tlbg=="
  }
}'

{
  "config": {
    "envvars": {
      "SLACK_APP_TOKEN": "eC1hcHAtdG9rZW4=",
      "SLACK_BOT_TOKEN": "eG94Yi10b2tlbg=="
    },
    "id": "D9A998B3-AA7B-49B0-8463-C9E36435FC0B"
  },
  "connections": [
    {
      "config": [
        "EMAIL_ADDRESS",
        "URL"
      ],
      "id": "B702C63C-E6EB-46BB-9D1E-90EA077E4582",
      "name": "pgdemo"
    }
  ],
  "id": "15B5A2FD-0706-4A47-B1CF-B93CCFC5B3D7",
  "name": "slack",
  "priority": 0,
  "source": "null"
}