Update Project.toml

Author: ChrisRackauckas

Project.toml

@@ -16,7 +16,7 @@ Symbolics = "0c5d862f-8b57-4792-8d23-62f2024744c7"
 Aqua = "0.8"
 ComponentArrays = "0.15.11"
 ForwardDiff = "0.10.36"
-JET = "0.8"
+JET = "0.8, 0.9"
 Lux = "1"
 LuxCore = "1"
 ModelingToolkit = "9.9"