Add JLD2 to test env (#2792)

Author: christiangnrd

test/Project.toml

@@ -12,6 +12,7 @@ FFTW = "7a1cc6ca-52ef-59f5-83cd-3a7055c09341"
 GPUArrays = "0c68f7d7-f131-5f86-a1c3-88cf8149b2d7"
 GPUCompiler = "61eb1bfa-7361-4325-ad38-22787b887f55"
 InteractiveUtils = "b77e0a4c-d291-57a0-90e8-8db25a27a240"
+JLD2 = "033835bb-8acc-5ee8-8aae-3f567f8a3819"
 Interpolations = "a98d9a8b-a2ab-59e6-89dd-64a1c18fca59"
 KernelAbstractions = "63c18a36-062a-441e-b654-da1e3ab1ce7c"
 LinearAlgebra = "37e2e46d-f89d-539d-b4ee-838fcccc9c8e"