[OpenVINO] Updated OpenVINO requirements and build docs

[ilya-lavrenov]

• Recently, all docker files were updated to use Ubuntu 20.04, while OpenVINO docker file was not validated. Some dependencies are available only for python 3.9 which is our of box available in Ubuntu 22.04. Returning Ubuntu 22.04 for OpenVINO
• Transformers 4.43 is used as vLLM common dependency, while HF Optimum does not support this version yet. Temporary use 4.42 for OpenVINO backend.

Fixes #6769
Fixes #6898

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[github-actions]

👋 Hi! Thank you for contributing to the vLLM project.
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[ilya-lavrenov]

/ready

[WoosukKwon]

@ilya-lavrenov Thanks for the update!