[Nightly] Optimize nightly CI (#4509)

### What this PR does / why we need it?
1. Optimize multi-node waiting logic
2. Remove the `tee` pipeline for logs, which will lead to hang issue

### How was this patch tested?


- vLLM version: v0.12.0
- vLLM main: https://github.com/vllm-project/vllm/commit/v0.12.0

Signed-off-by: wangli <wangli858794774@gmail.com>

examples/disaggregated_prefill_v1/gen_ranktable.sh

@@ -78,6 +78,7 @@ if [ -n "$LOCAL_DEVICE_IDS" ]; then
 fi
 
 if [[ -n "${GEN_RANKTABLE}" || ! -e ${PWD}/ranktable.json ]]; then
+    timeout 180s \
     GLOO_SOCKET_IFNAME=$NETWORK_CARD_NAME torchrun \
         --nproc_per_node 1 \
         --nnodes ${NNODES} \