[TASK] Speed up unit tests

* Drop a TimeTracker test that does a sleep(1) to safe this
  second. The subject is pretty trivial anyways.
* The recently introduced MFA related unit tests receive
  some password hashing options to reduce calculation costs.
  This reduces suite execution time from ~60 seconds to ~40
  locally - totally worth it.

Resolves: #93723
Releases: master
Change-Id: I510f8b8f71f7c787e30a92e14a7876464f0655a6
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/68368


Tested-by: Oliver Bartsch <bo@cedev.de>
Tested-by: TYPO3com <noreply@typo3.com>
Tested-by: Richard Haeser <richard@richardhaeser.com>
Tested-by: core-ci <typo3@b13.com>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>
Reviewed-by: Oliver Bartsch <bo@cedev.de>
Reviewed-by: Richard Haeser <richard@richardhaeser.com>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>