fix CI: add JLD2 dependency

Seems like AMDGPU.jl was forgotten :'( JuliaGPU/GPUArrays.jl#597 (comment)

Author: simeonschaub

test/Project.toml

@@ -7,6 +7,7 @@ ForwardDiff = "f6369f11-7733-5829-9624-2563aa707210"
 GPUArrays = "0c68f7d7-f131-5f86-a1c3-88cf8149b2d7"
 GPUCompiler = "61eb1bfa-7361-4325-ad38-22787b887f55"
 InteractiveUtils = "b77e0a4c-d291-57a0-90e8-8db25a27a240"
+JLD2 = "033835bb-8acc-5ee8-8aae-3f567f8a3819"
 KernelAbstractions = "63c18a36-062a-441e-b654-da1e3ab1ce7c"
 LLVM = "929cbde3-209d-540e-8aea-75f648917ca0"
 LinearAlgebra = "37e2e46d-f89d-539d-b4ee-838fcccc9c8e"