Add determinstic UUID generation

[kaibocai]

Description

This PR add logic to generated a determinstic UUID to for workflow.

    UUID uuid = context.newUuid();

Issue reference

We strive to have all PR being opened based on an issue, where the problem or feature have been discussed prior to implementation.

Please reference the issue this PR will close: #931

Checklist

Please make sure you've completed the relevant tasks for this PR, out of the following list:

• Code compiles correctly
• Created/updated tests
• Extended the documentation

[kaibocai]

Hi @cicoyle , would you mind helping me to rerun the CI, I added one more test to improve the coverage.
Also, is there a way to gain permission to run the CI by myself? I read the CONTRIBUTING.md but didn't find anything about it. Thanks.

[cicoyle]

Hi @cicoyle , would you mind helping me to rerun the CI, I added one more test to improve the coverage. Also, is there a way to gain permission to run the CI by myself? I read the CONTRIBUTING.md but didn't find anything about it. Thanks.

Hey @kaibocai, the Java-sdk maintainers are the only ones able to run CI and my understanding is that there is flakiness. However, I can ping Artur for re-running CI. I believe he won't merge this until there is a PR updating the example

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (1bd2c22) 76.58% compared to head (c767969) 76.59%.

Additional details and impacted files

@@             Coverage Diff              @@
##             master     #947      +/-   ##
============================================
+ Coverage     76.58%   76.59%   +0.01%     
- Complexity     1465     1467       +2     
============================================
  Files           137      137              
  Lines          4468     4470       +2     
  Branches        526      526              
============================================
+ Hits           3422     3424       +2     
  Misses          761      761              
  Partials        285      285              

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