Merge pull request #856 from SciML/compathelper/new_version/2021-03-04-00-41-13-922-834589450

CompatHelper: bump compat for "SymbolicUtils" to "0.9"

Author: YingboMa

Project.toml

@@ -64,7 +64,7 @@ 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 = "0.8.3"
+SymbolicUtils = "0.8.3, 0.9"
 Symbolics = "0.1.2"
 TreeViews = "0.3"
 UnPack = "0.1, 1.0"