Additional system tests for zocalo results bounds checks

[rtuck99]

Additional system tests accompanying

• Fix the bounds checking for returned zocalo results dodal#1004

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 87.02%. Comparing base (aa5f360) to head (c97bcdf).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #761   +/-   ##
=======================================
  Coverage   87.02%   87.02%           
=======================================
  Files         101      101           
  Lines        6974     6974           
=======================================
  Hits         6069     6069           
  Misses        905      905           

Components	Coverage Δ
i24 SSX	72.84% <ø> (ø)
hyperion	96.55% <ø> (ø)
other	96.58% <ø> (ø)

[DominicOram]

Tried to run this but getting an error of bluesky.utils.FailedStatus: <AsyncStatus, device: undulator_dcm, task: <coroutine object UndulatorDCM.set at 0x7fcb682cf2e0>, errored: FileNotFoundError(2, 'No such file or directory')> I think @rtuck99 is looking at this as part of another issue.