CompatHelper: bump compat for "SymbolicUtils" to "0.13"

Author: github-actions[bot]

Project.toml

@@ -69,7 +69,7 @@ SciMLBase = "1.3"
 Setfield = "0.7"
 SpecialFunctions = "0.7, 0.8, 0.9, 0.10, 1.0"
 StaticArrays = "0.10, 0.11, 0.12, 1.0"
-SymbolicUtils = "0.12"
+SymbolicUtils = "0.12, 0.13"
 Symbolics = "1"
 UnPack = "0.1, 1.0"
 Unitful = "1.1"