Update dolphin tests following place changes D7446

Summary:
Adapt tests corresponding to changes in D7446
The placesitemmodeltest were not run due to KIO_VERSION not existing

Test Plan: LANG="en" ctest

Reviewers: Dolphin, elvisangelaccio

Reviewed By: Dolphin, elvisangelaccio

Subscribers: kfm-devel

Tags: Dolphin

Differential Revision: https://phabricator.kde.org/D23557