Better Error Handling and Retries

Made changes to exception handling to improve the retry logic loop

Changes

• Changed error handling to capture all exceptions of class Exception
• Retry loop no longer re-throws the original error that caused the attempt to fail
• Added new error RetryLimitReached for when the retry count limit is reached
• Access the original error that caused the failed attempt by accessing the offending_error attribute of the RetryLimitReached error
• Updated the URLs used for running CI tests