overlay/example: added qt core dependency for qt overlay example
The qt overlay example includes the QTimer header which is part of the qt core. On my system the missing dependency to qt core leads to an error and this pull request solves it.
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Equinix is shutting down its operations with us on April 30, 2025. They have graciously supported us for almost 5 years, but all good things come to an end.
Given the time frame, it's going to be hard to make a smooth transition of the cluster to somewhere else (TBD). Please expect in the next months some hiccups in the service and probably at least a full week of downtime to transfer gitlab to a different place.
All help is appreciated.
The qt overlay example includes the QTimer header which is part of the qt core. On my system the missing dependency to qt core leads to an error and this pull request solves it.