Add telemetry

[ianagne]

Adding this for posterity, I will work on this issue shortly.

It would be useful to emit events with metadata around the success or failure of HTTP requests to the Prismic API to enhance spans.

Specifically, I would like to see the following attributes:

• status - ok/error
• attempt - The current attempt number
• method - HTTP method of request
• url - url of request
• status_code - HTTP status code of the response