Add a test for CI that:
* ensures unl0kr runs for 10 seconds without crashing
* ensures that it doesn't print any errors
This sure isn't an "ideal" test, but it at least validates that the
framebuffer interface doesn't die horribly...
With a little more effort we should be able to run unl0kr and then pull
the framebuffer and check it against some known good unl0kr screenshot.
Signed-off-by: Caleb Connolly <caleb@connolly.tech>
