Uploads a document as a claim attachment and returns an attachment ID that can be used with other claim APIs
cURL
curl --request POST \ --url https://forecaster.cairhealth.com/api/claim/attachment/v1 \ --header 'Authorization: Bearer <token>' \ --header 'content-type: <content-type>' \ --data '<string>'
{ "attachmentId": "12345678-1234-1234-1234-123456789012" }