BUGFIX: Dont crash in cli context

[mhsdesign]

The security Context cannot be initialized yet.
Please check if it can be initialized with
$securityContext->canBeInitialized() before trying to do so.

  Type: Neos\Flow\Security\Exception
  Code: 1358513802
  File: Data/Temporary/Development/Cache/Code/Flow_Object_Classes/Neos_Flow_Securit
        y_Context.php
  Line: 312

when having a command to modify the cr this error will be thrown at shutdown

[Sebobo]

Updating the last changed date is still relevant for a workspace.

First to see in the workspace overview that a workspace was touched (even by a CLI command). As we don't have a user I would set the user then to null for now and adjust the UI to show that the "system" updated the workspace in that case.

Secondly to correctly calculate the "stale" status of a workspace which I use in the CDP project to check whether to flush caches etc.

[Sebobo]

I would not skip the update of the workspace in general but instead skip updating the last editor and still update the last edited date time.