[PlacesItemModelTest] Try to use an event loop instead of an hardcoded timeout

Increasing the timeout from 5 to 10 seconds didn't work.
Let's see if an eventloop does the job.

1 files changed, 1 insertions, 0 deletions

diff --git a/src/panels/places/placesitemmodel.h b/src/panels/places/placesitemmodel.h
index c4ff7e2dd..33760f217 100644
--- a/src/panels/places/placesitemmodel.h
+++ b/src/panels/places/placesitemmodel.h
@@ -145,6 +145,7 @@ signals:
     void storageSetupDone(int index, bool success);
     void storageTearDownRequested(const QString& mountPath);
     void storageTearDownExternallyRequested(const QString& mountPath);
+    void sourceModelDataChanged(const QModelIndex &topLeft, const QModelIndex &bottomRight, const QVector<int> &roles = QVector<int>());
 
 protected:
     void onItemInserted(int index) override;