CompatHelper: bump compat for Setfield to 0.8, (keep existing compat)

Author: CompatHelper Julia

Project.toml

@@ -37,7 +37,7 @@ IfElse = "0.1"
 LabelledArrays = "1.5"
 MultivariatePolynomials = "0.3"
 NaNMath = "0.3"
-Setfield = "0.7"
+Setfield = "0.7, 0.8"
 SpecialFunctions = "0.10, 1.0"
 StaticArrays = "0.12, 1.0"
 TermInterface = "0.1.8"