Fixed wrong type: long is not garanteed to be int64!

include/aidge/backend/cpu/data/TensorImpl.hpp

@@ -125,9 +125,9 @@ static Registrar<Tensor> registrarTensorImpl_cpu_Float32(
 static Registrar<Tensor> registrarTensorImpl_cpu_Float16(
         {"cpu", DataType::Float16}, Aidge::TensorImpl_cpu<half_float::half>::create);
 static Registrar<Tensor> registrarTensorImpl_cpu_Int64(
-        {"cpu", DataType::Int64}, Aidge::TensorImpl_cpu<long>::create);
+        {"cpu", DataType::Int64}, Aidge::TensorImpl_cpu<int64_t>::create);
 static Registrar<Tensor> registrarTensorImpl_cpu_Int32(
-        {"cpu", DataType::Int32}, Aidge::TensorImpl_cpu<int>::create);
+        {"cpu", DataType::Int32}, Aidge::TensorImpl_cpu<int32_t>::create);
 static Registrar<Tensor> registrarTensorImpl_cpu_Int16(
         {"cpu", DataType::Int16}, Aidge::TensorImpl_cpu<int16_t>::create);
 static Registrar<Tensor> registrarTensorImpl_cpu_UInt16(