Extend `isRetryPossible` with other error codes?

[ggreif]

          I wonder if this should also include the synchronous errors due to queue full, which I guess could be retried after an await. But we can extend later

Originally posted by @crusso in #692 (review)

Maybe adding the queue full error to this is not a good idea, as it cannot fix the underlying problem in this round.

Also see: #692 (review)