[JVM] Skip newly failing tests for signal handling
[JVM] Skip newly failing tests for signal handling

Since rakudo commit 85743228e0 calling 'KERNEL.signal(SIGHUP)' dies
with 'Type check failed for return value; expected ?:? but got Int (Int)'.

We already see that error elsewhere for rakudo-j, so I think said
commit is fine for rakudo-j -- it just uncovered an existing bug.

dogbert17/roast,dogbert17/roast,bitrauser/roast,perl6/roast,bitrauser/roast