[TASK] Update testing require-dev dependencies

* se/selenium-server-standalone 3.4.0->3.5.3
* codeception/codeception 2.3.5->2.3.6
* enm1989/chromedriver 2.31->2.32

Minor additional change in one acceptance test to
stabilize that test a bit better.

Change-Id: Ic306d6bb04139097962219d6047ae6aa387a5c3c
Releases: master, 8.7
Resolves: #82656
Reviewed-on: https://review.typo3.org/54270


Tested-by: TYPO3com <no-reply@typo3.com>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>