[Snippets] Move BrgemmCopyB repacking logic outside the Subgraph #12424

Job	Run time
Smart_CI	19s
Docker	1m 14s
Build / Build	11m 16s
Conformance (OP)	9m 5s
OpenVINO JS API	0s
Conformance (API)	2m 42s
iGPU Tests	0s
dGPU Tests	0s
NVIDIA plugin	0s
Debian Packages / Debian Packages	2m 28s
CPU functional tests / CPU functional tests	21m 8s
ONNX Runtime Integration / ONNX Runtime Integration	7m 0s
Samples / Samples	7m 17s
ONNX Models Tests / ONNX Models tests	21m 11s
C++ unit tests / C++ unit tests	1m 42s
OpenVINO tokenizers extension / OpenVINO tokenizers extension	4m 24s
Python unit tests / Python unit tests	8m 37s
Pytorch Layer Tests / PyTorch Layer Tests	24m 47s
TensorFlow Hugging Face Models tests	0s
TensorFlow TF Hub Models tests	0s
PyTorch Models Nightly Scope1 tests	0s
PyTorch Models Nightly Scope2 tests	0s
TensorFlow Layer Tests / TensorFlow Layer Tests	21m 44s
TensorFlow Models tests / TensorFlow Models tests	13m 1s
PyTorch Models tests / PyTorch Models tests	34m 33s
JAX/Flax Models tests / JAX/Flax Models tests	1m 52s
ci/gha_overall_status	1s
	3h 14m 21s

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