I currently have a cloud scheduler job with an http target and post method.
According to Google's documentation for the Cloud Scheduler:
Content-Type: By default, the Content-Type header is set to "application/octet-stream". The default can be overridden by explicitly setting Content-Type to a particular media type when the job is created. For example, Content-Type can be set to "application/json".
I need to do almost exactly this, set Content-Type to "application/json; charset=utf-8", but I see no way of doing so. How do you "override it explicitly"?