fix: incorrect updateWithStart signature

[DanielsStugis]

What was changed

• Fixed WorkflowClientCallsInterceptor::updateWithStart() signature to match value returned from WorkflowStarter::updateWithStart()
• Added test case to cover fixed area.

Why?

Because whenever WorkflowClientCallsInterceptor implementation is provided and updateWithStart() is called exception happens.
Example output, from the provided test case, if signature change is reverted

TypeError: Temporal\Tests\Interceptor\InterceptorCallsCounter::updateWithStart(): Return value must be of type Temporal\Client\Update\UpdateHandle, array returned

Checklist

1. Closes nothing (did not find any related issue)

2. How was this tested:
   See the added test case

3. Any docs updates needed?
   No

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Name	Status	Preview	Comments	Updated (UTC)
php	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	May 1, 2025 2:44pm

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[roxblnfk]

Sorry, I didn't notice that my review was in pending status.

[roxblnfk]

Could you replace the array with UpdateWithStartOutput DTO?

[DanielsStugis]

Sure, hopefully managed to cover all the relevant places for it.
Also that exception returning makes things messy, considered making separate properties for $handle and $exception, but then we would have nullable values and ugly checks for those