[BUGFIX] Prevent PHP fatal error in scheduler

One place has been overseen, when stabilizing deserialization in
scheduler. The automatic cleaning of stuck executions now also uses the
TaskSerializer to catch potential InvalidTaskExceptions. The info log
message contains dummy values in such a case.

Resolves: #99605
Related: #92466
Releases: main, 11.5
Change-Id: Id100991dbba61d7761987f0a0bdd04415ad86891
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/77437


Tested-by: Nikita Hovratov <nikita.h@live.de>
Tested-by: core-ci <typo3@b13.com>
Reviewed-by: Nikita Hovratov <nikita.h@live.de>