[BUGFIX] Fix event binding in scheduler task form docheader

This commit fixes the event binding on the "Close" and "Save" actions to
trigger the correct actions when e.g. the icons within the buttons are
clicked.

Resolves: #104333
Releases: main, 12.4
Change-Id: I448c0b68de376a1b0e8517cc58c5bf2d2576b662
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/85152


Tested-by: Georg Ringer <georg.ringer@gmail.com>
Reviewed-by: Georg Ringer <georg.ringer@gmail.com>
Reviewed-by: Andreas Kienast <a.fernandez@scripting-base.de>
Tested-by: core-ci <typo3@b13.com>
Tested-by: Andreas Kienast <a.fernandez@scripting-base.de>
Tested-by: Garvin Hicking <gh@faktor-e.de>
Reviewed-by: Garvin Hicking <gh@faktor-e.de>