Handle workflowCompleted error in java client #611
                
     Merged
            
            
          
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What changed?
With this PR (#606) we have been handling WorkflowExecutionAlreadyCompletedError in couple places except for the tchannel. This diff adds tchannel support for this error.
Why?
How did you test it?
I need some help on how we test java-client changes E2E, sending the PR as the context; will update here once I have the testing strategy
Potential risks
Release notes
Documentation Changes