Increase test timeout limit (again)

Author: christiangnrd

test/runtests.jl

@@ -245,7 +245,7 @@ try
 
                     # catch timeouts
                     pid = remotecall_fetch(getpid, wrkr)
-                    timer = Timer(360) do _
+                    timer = Timer(480) do _
                         @warn "Test timed out: $test"
                         t1 = rmprocs(wrkr, waitfor=0)