[Core Feature]: Allow to configure agent status update frequency

[thomas-maschler]

I have an asynchronous agent that schedules long-running jobs using a third-party service. That service has request quotas.
Right now, agents request a status update every 5s. When running many long-running tasks concurrently I frequently run into quota limits and my status updates fail.

I would like to configure the status update frequency for my agent in a similar way I can configure timeouts.
https://docs.flyte.org/en/latest/flyte_agents/developing_agents.html#canary-deployment

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[pingsutw]

You should be able to configure it by updating this config

[kumare3]

@thomas-maschler as @pingsutw said, this is already supported in Agents today. please use this to adjust.
@pingsutw maybe we should make it possible to adjust it from the AgentMetadata service (in the future)?