Add example for workflow ID reuse policy

[kaibocai]

What content needs to be created or modified?

Reference to dapr/dapr#7101 and dapr/dapr#7308, workflow ID reuse policy support is ready.

Describe the solution you'd like

Add examples for explaining workflow ID reuse policy

Where should the new material be placed?

Examples should be added somewhere here https://github.com/kaibocai/docs/tree/7e79a7f0bb725da707a3e2a713925b74ac74b877/daprdocs/content/en/developing-applications/building-blocks/workflow

The associated pull request from dapr/dapr, dapr/components-contrib, or other Dapr code repos

dapr/dapr#7101
dapr/dapr#7308

Additional context

[kaibocai]

/assign

[kaibocai]

I just recall that the SDK updates for reuse ID were paused when we worked on the .NET SDK updates for ID reuse support, the discussion about refactoring the design dapr/dapr#6434 was brought up by the .NET SDK repo maintainer and the SDK updates are paused. Currently, customers cannot use this feature as SDKs don't have support for it.
I suggest pushing this doc update to 1.14 after we finish refactoring the design and adding support for SDKs.

cc @cgillum

[cgillum]

@kaibocai I don't think it makes sense to pause all SDK work because of a small change we want to make to the SkipIfExists policy. IIRC, the proposed change only impacts runtime and API behavior, but not the SDK behavior. I think we should do the work to complete the SDKs so that developers can start using them and getting value from them in the 1.13 timeframe (which was part of our published 1.13 roadmap, right?). We can make adjustments as necessary in 1.14 when we can make a corresponding runtime change but I don't see any reason to pause SDK work for something as small as this.

[kaibocai]

Thank you, @cgillum. I'll proceed with the SDK development. In fact, Java already had a PR for review concerning this feature. I plan to collaborate with another SDK owner to incorporate support for this feature. However, given our current timeline, it's possible that this update may not be included in the 1.13 release.