tests: Disable SharedArray tests due to Bus Error

Author: jpsamaroo

test/array.jl

@@ -281,10 +281,12 @@ end
     @test !isempty(Dagger.show_plan(Dagger.spawn(()->10)))
 end=#
 
+#= FIXME: Unreliable, may segfault/bus error
 @testset "sharedarray" begin
     A = SharedArray{Int}((1024,))
     B = SharedArray{Int}((1024,))
     C = Dagger.merge_sorted(Base.Order.Forward, A, B)
     @test length(C) === length(A) + length(B)
     @test typeof(C) === (Dagger.use_shared_array[] ? SharedArray{Int,1} : Array{Int,1})
 end
+=#