Add FormerName tag to Vector1ShaderProperty

MaterialGraphProject/Assets/UnityShaderEditor/Editor/Data/Graphs/FloatShaderProperty.cs

     }
 
     [Serializable]
+    [FormerName("UnityEditor.ShaderGraph.FloatShaderProperty")]
     public class Vector1ShaderProperty : AbstractShaderProperty<float>
     {
         public Vector1ShaderProperty()