feat: introduce output argument to `.cancel()` and `.failWithoutRetry()` to mark jobs as failed without implicitly retrying

[pcnc]

Introduces:

• .cancel(jobId, data)
• .failWithoutRetry(jobId, data)
  • current implementation of .fail() queues up a retry if retrycount < retrylimit, giving no option of marking job as explicitly failed without further retries down the line

Additionally:

• Bumps default Postgres container limits to 300 to avoid any max connections exceeded errors during test runs