Write a monitor chain test that monitor behaviour of block and transaction finality time

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The issue title mentions writing a monitor chain test for block and transaction finality time behavior, but the body is empty. Look for existing monitor chain tests in the repository to understand the structure and patterns. Determine what finality time means in the context of 0Chain's blockchain and storage protocols, and identify the components that need to be monitored. The test likely involves setting up a chain, monitoring events, and verifying finality times against expected behavior.

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