Increase version requirements for wl_data_device_release

* wl_data_device_manager -> version 2
* wl_data_device -> version 2
* Wayland -> version 1.7

Unfortunately the client side is not yet completely correct. We
need to call wl_data_device_release only if we have a data device
of version 2. But there is no easy way to test this. To change we
will need to introduce a client side version tracking.

BUG: 352663