[DBZ-PGYB] Restrict retries when retry count reaches limit

[vaibhav-yb]

Problem

With the current retry model, it was being noticed that the connector ended up retrying infinitely whenever an exception was thrown. This could lead to false positives that the connector is still running while the retries will keep failing.

Solution

This PR addresses the issue by adding a check to the task layer so now if the retry count reaches the maximum value, the connector will exit and the task will reach in a failed state - this will help the end user know the status of the task and act accordingly.

This PR also redefines the following properties and changes their default values:

1. errors.max.retries - new default value is 60
2. retriable.restart.connector.wait.ms - new default value is 30000 (30s)

With the above change, the complete retry duration with the above default configuration will now be 30 minutes. This effectively means that if the connector/s task fails after exhausting all the retries then it will go into a FAILED state.

For example, if the connector is needed to retry for a total of 30 minutes then we can handle it in 2 ways:

1. By fixing the number of retries: Let's say we want the number of retries to be fixed to 15 so we can now configure our retry delay accordingly i.e. 30 / 15 = 2 minutes = 120 s = 120000 ms, so the configuration will now add:

"retriable.restart.connector.wait.ms":"120000",
"errors.max.retries":"15"

4. By fixing the retry delay: If we want to have a retry delay of a minute then we will configure the number of retries accordingly i.e. 30 / 1 = 30 retries, so the configuration will now be:

"retriable.restart.connector.wait.ms":"60000",
"errors.max.retries":"30"

[suranjan]

Please add a description on how to set the config for 30 minutes of retry for example.
Also lets make the default values so that it retries for 30 minutes before failing

[suranjan]

Please add a description on how to set the config for 30 minutes of retry for example.
Also lets make the default values so that it retries for 30 minutes before failing