An administrator is now able to abort the confirmation of an selected
upgrade wizard without the need to close and re-open the modal.

Resolves: #94515
Releases: master, 10.4
Change-Id: I0c7d63a13a4f0f63844ee28be09dec203dd9c5ac
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/69768


Tested-by: core-ci <typo3@b13.com>
Tested-by: Benni Mack <benni@typo3.org>
Tested-by: Frank Nägler <frank.naegler@typo3.com>
Tested-by: Andreas Fernandez <a.fernandez@scripting-base.de>
Reviewed-by: Benni Mack <benni@typo3.org>
Reviewed-by: Frank Nägler <frank.naegler@typo3.com>
Reviewed-by: Andreas Fernandez <a.fernandez@scripting-base.de>