fix(metrics): deprecate executor identity in sink metrics

[fuyufjh]

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What's changed and what's your intention?

Resolves #17532.

"Executor identity" is less informative for monitoring. In this PR, we use actor_id as a substitute of executor_id to distinguish multiple parallelism of the SinkExecutor, and add sink_name to make it more friendly to users.

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[chenzl25]

LGTM!

[wenym1]

LGTM. Thanks for the PR.