fix: fix all_symbols not returning dependent parameters

Author: AayushSabharwal

src/systems/abstractsystem.jl

@@ -824,7 +824,7 @@ end
 
 function SymbolicIndexingInterface.all_symbols(sys::AbstractSystem)
     syms = all_variable_symbols(sys)
-    for other in (parameter_symbols(sys), independent_variable_symbols(sys))
+    for other in (full_parameters(sys), independent_variable_symbols(sys))
         isempty(other) || (syms = vcat(syms, other))
     end
     return syms