### What this PR does / why we need it?
Using an ARM-based github_hosted node to temporarily resolve `no space
left` issues when installing vllm in UT.
### Does this PR introduce _any_ user-facing change?
### How was this patch tested?
- vLLM version: v0.12.0
- vLLM main:
ad32e3e19c
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Signed-off-by: wangli <wangli858794774@gmail.com>
Co-authored-by: Yikun Jiang <yikunkero@gmail.com>