[Improve][DataProxy] Added service status and load fields in heartbeat request

[gosonzhang]

Description

The parent issue is: #6364

In the heartbeat interaction between DataProxy and Manager, add DataProxy service status and load information:

1. The service status of DataProxy [1] is 0, indicating that the node can provide services to the outside world; other values indicate that the service status is unavailable, and the Manager can only provide nodes that can provide services to the outside world.

2. The load information [2] of DataProxy is a short value, and the Manager needs to transparently transmit the reported value to the queryer for comparison and use by the queryer

3. [INLONG-6406][DataProxy] Support creating sink dynamically after starting #6413

4. [Improve][DataProxy] Add DataProxy node load information #6364

InLong Component

InLong Manager, InLong DataProxy

Are you willing to submit PR?

• Yes, I am willing to submit a PR!

Code of Conduct

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