CompatHelper: bump compat for SymbolicUtils to 2, (keep existing compat)

Author: CompatHelper Julia

Project.toml

@@ -59,7 +59,7 @@ RecipesBase = "1.1.1"
 Revise = "3"
 StaticArrays = "1"
 StatsPlots = "0.15"
-SymbolicUtils = "0.19, 1.0"
+SymbolicUtils = "0.19, 1.0, 2"
 Symbolics = "4, 5"
 TaylorModels = "0.6, 0.7"
 TaylorSeries = "0.12, 0.13, 0.14, 0.15, 0.16, 0.17"