Update test dependencies (#278)

Author: devmotion

test/Project.toml

@@ -1,6 +1,5 @@
 [deps]
 AxisArrays = "39de3d68-74b9-583c-8d2d-e117c070f3a9"
-ChainRulesTestUtils = "cdddcdb0-9152-4a09-a978-84456f9df70a"
 Distances = "b4f34e82-e78d-54a5-968a-f98e89d6e8f7"
 Documenter = "e30172f5-a6a5-5a46-863b-614d45cd2de4"
 FiniteDifferences = "26cc04aa-876d-5657-8c51-4c34ba976000"
@@ -20,7 +19,7 @@ AxisArrays = "0.4.3"
 Distances = "0.9, 0.10"
 Documenter = "0.25, 0.26"
 FiniteDifferences = "0.10.8, 0.11, 0.12"
-Flux = "0.10, 0.11"
+Flux = "0.10, 0.11, 0.12"
 ForwardDiff = "0.10"
 Kronecker = "0.4"
 PDMats = "0.9, 0.10, 0.11"

test/runtests.jl

@@ -13,7 +13,6 @@ using Zygote: Zygote
 using ForwardDiff: ForwardDiff
 using ReverseDiff: ReverseDiff
 using FiniteDifferences: FiniteDifferences
-using ChainRulesTestUtils
 
 using KernelFunctions: SimpleKernel, metric, kappa, ColVecs, RowVecs, TestUtils