[BUGFIX] Add backend authentication to Extbase CommandController

Ensure backwards compatibility with existing Extbase CommandControllers
by making sure the _cli_ user is always authenticated, so e.g. calls to
the DataHandler do not require explicit authentication in the extensions
CommandController.

Resolves: #82566
Releases: master, 8.7
Change-Id: Ice9b039558b68050c08a53f1c50dc726ec657522
Reviewed-on: https://review.typo3.org/54222


Reviewed-by: Stephan Großberndt <stephan@grossberndt.de>
Tested-by: Stephan Großberndt <stephan@grossberndt.de>
Reviewed-by: Wolfgang Klinger <wolfgang@wazum.com>
Tested-by: Wolfgang Klinger <wolfgang@wazum.com>
Tested-by: TYPO3com <no-reply@typo3.com>
Reviewed-by: Benni Mack <benni@typo3.org>
Tested-by: Benni Mack <benni@typo3.org>