Add System.Runtime to CSharpOptions

The System.Runtime assembly and namespace has been added to CSharpOptions. This extends the functionality capabilities within the Elsa.CSharp module by providing access to the Guid class and its related methods and properties.

src/modules/Elsa.CSharp/Options/CSharpOptions.cs

@@ -27,7 +27,8 @@ public class CSharpOptions
     public ISet<Assembly> Assemblies { get; } = new HashSet<Assembly>(new[]
     {
         typeof(Globals).Assembly, // Elsa.CSharp
-        typeof(Enumerable).Assembly, // System.Linq,
+        typeof(Enumerable).Assembly, // System.Linq
+        typeof(Guid).Assembly, // System.Runtime
         typeof(IDictionary<string, object>).Assembly, // System.Collections
     });
 
@@ -38,6 +39,7 @@ public class CSharpOptions
     {
         typeof(Globals).Namespace!, // Elsa.CSharp
         typeof(Enumerable).Namespace!, // System.Linq
+        typeof(Guid).Namespace!, // System
         typeof(IDictionary<string, object>).Namespace!, // System.Collections.Generic
     });