PackageKit is sometimes locked when trying to remove it, causing an error in provisioning. Scripts now wait until it is free for removal.
Task-number: QTQAINFRA-5577
Change-Id: I15d6bf5d72ec61517cc42a1dc51012ad60a806e9
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Heikki Halmet <heikki.halmet@qt.io>