[BUGFIX] Set correct image dimensions in impexp fixture data

Fixture data for functional tests in impexp contains correct height
for one image now.

Resolves: #82722
Releases: master, 8.7
Change-Id: I3fea831a5a030eb525fabe9bbb6e891a3a722fd7
Reviewed-on: https://review.typo3.org/54350


Reviewed-by: Georg Ringer <georg.ringer@gmail.com>
Tested-by: TYPO3com <no-reply@typo3.com>
Tested-by: Georg Ringer <georg.ringer@gmail.com>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>