[GHA] C++ unit to required on Ubuntu 20 (#28649) #43386

Job	Run time
Smart_CI	26s
Docker	44s
Build / Build	5m 59s
Debian Packages	0s
PyTorch Models tests	0s
OpenVINO JS API / OpenVINO JS API	1m 31s
JAX Layer Tests / JAX Layer Tests	1m 16s
C++ unit tests / C++ unit tests	11m 57s
Samples / Samples	6m 3s
ONNX Runtime Integration / ONNX Runtime Integration	3m 43s
OpenVINO tokenizers extension / OpenVINO tokenizers extension	1m 59s
Python API tests / Python API tests	2m 29s
CPU functional tests / CPU functional tests	5m 34s
Python unit tests / Python unit tests	2m 59s
Pytorch Layer Tests / PyTorch Layer Tests	2m 36s
TensorFlow Models tests	0s
TensorFlow Layer Tests / TensorFlow Layer Tests	3m 53s
ci/gha_overall_status_linux_arm64	1s
	51m 10s

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