[CI][NPU]: Add nightly performance test for NPU - Qwen3-TTS on A3 (#5158)

Signed-off-by: Weiming Liao <liaowm5@gmail.com>
Co-authored-by: wangyu <53896905+yenuo26@users.noreply.github.com>

docker/Dockerfile.npu.ci

@@ -6,6 +6,8 @@ ARG APP_DIR=/vllm-workspace/vllm-omni
 WORKDIR ${APP_DIR}
 COPY . .
 
+RUN sed -i "s@^\(deb.*\)https\?://[a-z0-9.-]*\.ubuntu\.com@\1http://cache-service.nginx-pypi-cache.svc.cluster.local:8081@g" /etc/apt/sources.list
+
 RUN apt-get update && \
     apt-get install -y --no-install-recommends \
         ffmpeg \

docker/Dockerfile.npu.ci.a3

@@ -6,6 +6,8 @@ ARG APP_DIR=/vllm-workspace/vllm-omni
 WORKDIR ${APP_DIR}
 COPY . .
 
+RUN sed -i "s@^\(deb.*\)https\?://[a-z0-9.-]*\.ubuntu\.com@\1http://cache-service.nginx-pypi-cache.svc.cluster.local:8081@g" /etc/apt/sources.list
+
 RUN apt-get update && \
     apt-get install -y --no-install-recommends \
         ffmpeg \