ayesha-ilm has created PR #2595: GODRIVER-4083 fix duplicate error logging for network error in mongo-go-driver

Issue Text:
GODRIVER-4083(https://jira.mongodb.org/browse/GODRIVER-4083)

1. 1. Summary

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(LOW PRIORITY) Fixes the duplicate error message logging.

1. 1. Background & Motivation

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before, network errors were being logged twice

1. 1. What I have done

added a check to see if error has already been logged.

1. 1. Test Plans

added a unit test to see if we still get duplicate error messages.