LG-8886: Catch and log network error when renewing USPS API auth token

[NavaTim]

🎫 Ticket

• LG-8886
  • This PR only includes a portion of the changes for this ticket.
  • Also see LG-8886: Split percent logging for USPS proofing networking errors #8993

🛠 Summary of changes

• Catch and log Faraday::TimeoutError and Faraday::ConnectionFailed when renewing USPS API auth token
  • This prevents these relatively common errors from bubbling up in a way that may trigger other alarms.

📜 Testing Plan

• Check that your local stack has the following flag enabled:
  • usps_mock_fallback
• Create a method UspsInPersonProofing::Mock::Proofer.retrieve_token! that throws Faraday::TimeoutError.new("test message")
• Run USPS token renewal job

  •  rails c

  •  UspsAuthTokenRefreshJob.perform_now

• Check that log/events.log includes the event UspsAuthTokenRefreshJob: Network error with the following fields:
  • exception_class = Faraday::TimeoutError
  • exception_message = test message

[tomas-nava]

approve!