[BUGFIX] Stabilize editPageTitle test

The editPageTitle acceptance test
sometimes fails for no reason.

This seems to be a timing issue and
will hopefully prevented by waiting
for the title to appear.

Resolves: #95165
Releases: master
Change-Id: Ib8a21694830f60828b54c2cacd6abc348ec8fec8
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/70983


Tested-by: core-ci <typo3@b13.com>
Tested-by: Oliver Bartsch <bo@cedev.de>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>
Reviewed-by: Oliver Klee <typo3-coding@oliverklee.de>
Reviewed-by: Oliver Bartsch <bo@cedev.de>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>