It is not clear from kdoc why `TypedWorker` does not compare output types in `doesSameWorkAs`

[steve-the-edwards]

Noticed by @JsFlo - https://workflow-community.slack.com/archives/CHTFPR277/p1639256520150800.

This was handled in the runtime when we started wrapping Workers with WorkerWorkflows that use the entire KType to determine a separate session. See #110 where this changed.

Specifically: https://github.com/square/workflow-kotlin/pull/110/files#diff-e08c3c317e60cdb91b25e6f171ff30bd43c862d97c3c7b55f9a2702be9574cb8L396

We need to update the kdoc.