Update Project.toml

Author: ChrisRackauckas

Project.toml

@@ -65,7 +65,7 @@ BenchmarkTools = "1.4"
 CUDA = "5.2"
 ConcreteStructs = "0.2.3"
 DiffEqBase = "6.149.0"
-Enzyme = "0.11.15"
+Enzyme = "0.11.15, 0.12"
 FastBroadcast = "0.2.8"
 FastClosures = "0.3.2"
 FastLevenbergMarquardt = "0.1"