Fixed generated code when a class extends multiple classes (#38)

* .

* .

* pnp

* ok

* compiles

* ?

* e

* set

* .ToArray()

* n

* ...

* ok

* pnp

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* mapster

src/ProxyInterfaceSourceGenerator/Models/Context.cs

@@ -9,7 +9,7 @@ internal record Context
 
     // public List<ContextData> GeneratedData { get; } = new List<ContextData>();
 
-    public IDictionary<InterfaceDeclarationSyntax, ProxyData> CandidateInterfaces { get; init; } = default!;
+    public IDictionary<InterfaceDeclarationSyntax, ProxyData> Candidates { get; init; } = default!;
 
     public Dictionary<string, string> ReplacedTypes { get; } = new();
 }