curl --request GET \
  --url https://hub.griff.services/integrations/providers \
  --header 'Authorization: Bearer <token>'

{
  "providers": [
    {
      "displayName": "<string>",
      "authMethod": "oauth",
      "configFields": [
        {
          "key": "<string>",
          "label": "<string>",
          "secret": true,
          "required": true,
          "default": "<string>"
        }
      ],
      "credentialFields": [
        {
          "key": "<string>",
          "label": "<string>",
          "secret": true,
          "required": true,
          "default": "<string>"
        }
      ]
    }
  ]
}