[CI/Build] remove regex from build dependencies

[dtrifiro]

#18454 migrated all uses of the re stdlib module to the regex due to a security vulnerability explained here

We have no security vulnerabilities by using the re module in setup.py, it just causes more problems: e.g. it broke the ROCm build and possibly others, due to how vllm is built differently for different target devices.

Signed-off-by: Daniele Trifirò [email protected]

[github-actions]

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[DarkLight1337]

Yeah this is reasonable, thanks for fixing!

[houseroad]

This seems a better solution.