[DSIP-33] Reduce WorkflowExecuteRunnable complexity

[qingwli]

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Motivation

Improve WorkflowExecuteContext, reduce the number of database queries, and reduce the number of NPEs

Design Detail

No response

Compatibility, Deprecation, and Migration Plan

No response

Test Plan

No response

Code of Conduct

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[ruanwenjun]

Good idea, this should be a huge task, and can be spitted into multiple task.