[TASK] Use default from address in scheduler's test task

Change the from address used in the test task of the scheduler 
by using the default address configured in
`$GLOBALS['TYPO3_CONF_VARS']['MAIL']['defaultMailFromAddress']`.

Resolves: #92961
Releases: master, 10.4
Change-Id: Ib4bf998c3180fa1bd2baa5591c340f04198aa026
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/66952


Tested-by: TYPO3com <noreply@typo3.com>
Tested-by: Stefan Froemken <froemken@gmail.com>
Tested-by: Oliver Bartsch <bo@cedev.de>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>
Reviewed-by: Stefan Froemken <froemken@gmail.com>
Reviewed-by: Oliver Bartsch <bo@cedev.de>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>