Add scalar case if "then" and "else" subgraph output are scalar. #17555

Job	Run time
Smart_CI	20s
Docker	3m 4s
Build / Build	13m 0s
Conformance (OP)	9m 1s
Conformance (API)	2m 2s
dGPU Tests	0s
iGPU Tests	0s
NVIDIA plugin	2m 52s
Debian Packages / Debian Packages	1m 39s
OpenVINO JS API / OpenVINO JS API	1m 27s
Samples / Samples	4m 42s
C++ unit tests / C++ unit tests	14m 11s
JAX Layer Tests / JAX Layer Tests	2m 8s
ONNX Models Tests / ONNX Models tests	20m 17s
ONNX Runtime Integration / ONNX Runtime Integration	6m 43s
Python API tests / Python API tests	2m 29s
Python unit tests / Python unit tests	4m 12s
Pytorch Layer Tests / PyTorch Layer Tests	15m 22s
CPU functional tests / CPU functional tests	22m 1s
OpenVINO tokenizers extension / OpenVINO tokenizers extension	2m 32s
TensorFlow TF Hub Models tests	0s
TensorFlow Hugging Face Models tests	0s
PyTorch Models Nightly Scope1 tests	0s
PyTorch Models Nightly Scope2 tests	0s
TensorFlow Layer Tests / TensorFlow Layer Tests	13m 31s
TensorFlow Models tests / TensorFlow Models tests	11m 33s
JAX/Flax Models tests / JAX/Flax Models tests	1m 44s
PyTorch Models tests / PyTorch Models tests	34m 1s
ci/gha_overall_status	1s
	3h 8m 52s

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