Lift Zygote version limit

Author: ChrisRackauckas

Project.toml

@@ -28,7 +28,7 @@ Requires = "1.0"
 StaticArraysCore = "1.1"
 SymbolicIndexingInterface = "0.1, 0.2"
 Tables = "1"
-Zygote = "< 0.6.56"
+Zygote = "0.6.56"
 julia = "1.6"
 
 [extensions]
@@ -56,4 +56,4 @@ test = ["SafeTestsets", "Aqua", "ForwardDiff", "LabelledArrays", "NLsolve", "Ord
 
 [weakdeps]
 Tracker = "9f7883ad-71c0-57eb-9f7f-b5c9e6d3789c"
-Zygote = "e88e6eb3-aa80-5325-afca-941959d7151f"
+Zygote = "e88e6eb3-aa80-5325-afca-941959d7151f"