Jobs that suceed on the last try create items stuck at processing state

## Steps:

1. Pick some file that can be successfully processed.
2. Adjust the environment, so that the file succeeds on the last try. (Trivial way: set `retries = 0`)
3. Upload the file.

## Expected results

The job is successful and the item is created.

## Actual results

The job is successful, but the item isn't visible. When I look into the DB, the item is still in `processing` state.

## Analysis

IIUC, in case of isLastRetry, the job is processed in slightly different way.

a. When some retries are remaining, the item state is updated (`.flatMap(itemStateTask(store, ItemState.Created))`)
b. When no retry is remaining and the job fails, the state is also updates (`.flatMap(_ => itemStateTask(store, ItemState.Created)(data))`)
c. When no retry is remaining and the job succeeds, I don't see such code.

In my case, I had `retries=0`, because it creates more readable logs (exceptions aren't repeated for each attempt). With retries>0, you usually don't hit the bug, as most jobs probably either succeed at the first attempt or fail on all attempts.