This PR makes the tests more robust against ConnectionRefused errors and ensure it retries the connection properly before panicking.

Changes Made:

• Increased Retries: Changed the retry count from 3 to 5.
• Exponential backoff: Instead of a fixed delay, now it uses a exponential backoff to gradually increase the wait time between retries. This can reduce the total wait time in successful cases while still allowing for enough time if the service is slow to start.
• Logging: Added tracing for better logging to capture more information about each connection attempt and errors encountered.