Occasional pipeline test failure on postgres

[knolleary]

We have had a couple test run failures on postgres with the following test. It is a timing issue as it has only happened a couple times (to my knowledge).

I suspect there's an async action updating the isDeploying flag in parallel to the query of the state - leading to non-deterministic result.

1) Pipelines API
       Deploy Pipeline Stage
         With action=use_latest_snapshot
           For instance=>device group
             Copies the existing instance snapshot to the next stages device group:
     AssertionError: expected Object {
  id: 'B9kj4VeLZP',
  name: 'device-group-b',
  description: 'an unnamed device group',
  deviceCount: 1,
  targetMatchCount: 0,
  activeMatchCount: 0,
  developerModeCount: 0,
  runningCount: 0,
  isDeploying: false,
  hasTargetSnapshot: false
} to have property isDeploying of true (got false)
      at Assertion.fail (node_modules/should/cjs/should.js:275:17)
      at Assertion.value [as property] (node_modules/should/cjs/should.js:356:19)
      at Context.<anonymous> (test/unit/forge/ee/routes/api/pipeline_spec.js:2490:49)
      at process.processTicksAndRejections (node:internal/process/task_queues:95:5)