Add default to switch (#14110)

src/core/src/op/unique.cpp

@@ -83,6 +83,8 @@ std::tuple<Shape, Shape, Shape> calculate_static_output_shapes(const Tensor& inp
     case element::f64:
         unique_elements = call_unique<double>(input_data, std::move(axis), op.get_sorted());
         break;
+    default:
+        OPENVINO_UNREACHABLE("Operator `Unique-10` doesn't support element type: ", op.get_input_element_type(0));
     }
 
     return ngraph::runtime::reference::make_tensor_shapes(unique_elements,