CompatHelper: bump compat for SymbolicUtils to 4, (keep existing compat)

Author: CompatHelper Julia

Project.toml

@@ -26,7 +26,7 @@ ChainRulesCore = "1"
 MacroTools = "0.5"
 NNlib = "0.9"
 SpecialFunctions = "2"
-SymbolicUtils = "3"
+SymbolicUtils = "3, 4"
 Symbolics = "6"
 Zygote = "0.6, 0.7"
 julia = "1.10"