[OpenVINO] Fixed installation conflicts (vllm-project#11458)

Signed-off-by: Ilya Lavrenov <ilya.lavrenov@intel.com>
Signed-off-by: Bowen Wang <abmfy@icloud.com>

requirements-openvino.txt

@@ -4,5 +4,5 @@
 torch == 2.5.1 #  should be aligned with "common" vLLM torch version
 openvino >= 2024.4.0 # since 2024.4.0 both CPU and GPU support Paged Attention
 
-optimum @ git+https://github.com/huggingface/optimum.git@main # latest optimum is used to support latest transformers version
-optimum-intel[nncf] @ git+https://github.com/huggingface/optimum-intel.git@main # latest optimum-intel is used to support latest transformers version
+optimum @ git+https://github.com/huggingface/optimum.git # latest optimum is used to support latest transformers version
+optimum-intel[nncf] @ git+https://github.com/huggingface/optimum-intel.git # latest optimum-intel is used to support latest transformers version