Update Project.toml

Author: ChrisRackauckas

Project.toml

@@ -59,7 +59,7 @@ BlockDiagonals = "0.1"
 ConcreteStructs = "0.2"
 DocStringExtensions = "0.8, 0.9"
 EnumX = "1"
-EnzymeCore = "0.6"
+EnzymeCore = "0.5, 0.6"
 FastLapackInterface = "1, 2"
 GPUArraysCore = "0.1"
 HYPRE = "1.4.0"