Many clock related functions in Ladybird use the clock type called
CLOCK_MONOTONIC_COARSE to obtain timestamps. This is a less precise
clock and can be skewed by 1 or more milliseconds.
This less precise clock timing is causing the abortsignal-timeout.html
test to fail randomly as it expects the abort signal to arrive after
10ms, but in some cases it arrives at 9ms causing the test to fail. In
some very rare cases it could even arrive in 7ms or 8ms.
Test is changed to accept 9ms as a good result and if that is still
not enough the test also will display the timings so that further
investigations can be made.
