[Feature Request] Allow querying the port/address via TestWorkflowEnvironment

[hanikesn]

Is your feature request related to a problem? Please describe.

We're currently spawning a global TestWorkflowEnvironment for our integration tests. As we can't pass the connection/nativeConnection directly onwards we have to pass the address to the application itself. Unfortunately it's not possible to query the actual address string including the port, when spawning the TestWorkflowEnvironment via createLocal when using a random free port.

Describe the solution you'd like

Allow querying the port/address so it's possible to use a random free port when creating clients manually.

Workaround

const env = await TestWorkflowEnvironment.createLocal()
const address = native.ephemeralServerGetTarget(env["server"])