Overview of Changes in CTK+ 3.25.4

ctk,Makefile: move 'ctkcolorsel' and 'ctkcolorseldialog' from 'ctk_private_h_sources' to 'ctk_public_h_sources'
cdkwindow: don't make deprecated 'cdk_window_get_background_pattern', 'cdk_window_set_background_pattern'
testsuit,ctk: Avoid 'g_log_set_writer_func' in tests
avoid deprecated G_APPLICATION_FLAGS_NONE
don't make deprecated 'cdk_cairo_create'
Remove Google Cloud Print backend
ci: remove libjson-glib-dev,librest-dev,libsoup2.4-dev
ci: build without --enable-cloudprint
ctkwidget: don't make deprecated 'ctk_widget_get_state', 'ctk_widget_set_state'
ctkbutton: don't make deprecated 'ctk_button_released', 'ctk_button_pressed'

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