[!!!][TASK] Harden TimeTracker

This change introduces strict types for the TimeTracker
class and its properties, and removes the legacy logging
options in favor of PSR-3 LogLevels.

Resolves: #96319
Releases: main
Change-Id: Ifbd1366dee53ab34290c9f16d00d57b0c2a81926
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/72602


Tested-by: core-ci <typo3@b13.com>
Tested-by: Stefan Bürk <stefan@buerk.tech>
Tested-by: Georg Ringer <georg.ringer@gmail.com>
Reviewed-by: Wouter Wolters <typo3@wouterwolters.nl>
Reviewed-by: Stefan Bürk <stefan@buerk.tech>
Reviewed-by: Georg Ringer <georg.ringer@gmail.com>