[NPU] Get value or default value in case of std::optional is not set #4007

Job	Run time
Smart_CI	19s
Build / Build	33m 15s
Python unit tests	8m 42s
JS API	0s
Samples	0s
OpenVINO tokenizers extension	0s
OpenVINO Python API Tests	0s
CPU functional tests	0s
C++ unit tests / C++ unit tests	1m 1s
JAX Layer Tests / JAX Layer Tests	4m 56s
Pytorch Layer Tests / PyTorch Layer Tests	9m 24s
TensorFlow Layer Tests	0s
ci/gha_overall_status_windows	1s
	57m 38s

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