[CI/Build] Update Dockerfile install+deploy image to ubuntu 22.04 (#9130

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Co-authored-by: DarkLight1337 <[email protected]>

Dockerfile

@@ -144,7 +144,7 @@ RUN --mount=type=cache,target=/root/.cache/pip \
 #################### DEV IMAGE ####################
 #################### vLLM installation IMAGE ####################
 # image with vLLM installed
-FROM nvidia/cuda:${CUDA_VERSION}-base-ubuntu20.04 AS vllm-base
+FROM nvidia/cuda:${CUDA_VERSION}-base-ubuntu22.04 AS vllm-base
 ARG CUDA_VERSION=12.4.1
 ARG PYTHON_VERSION=3.12
 WORKDIR /vllm-workspace