[CI][Bugfix] Upgrade escli to v0.2.1 to fix benchmark deps (#1055)

### What this PR does / why we need it?

Update escli-tool to v.0.2.1 to fix deps bug

### Does this PR introduce _any_ user-facing change?
No

### How was this patch tested?
CI passed

Signed-off-by: wangli <858794774@qq.com>

.github/workflows/nightly_benchmarks.yaml

@@ -135,7 +135,7 @@ jobs:
       - name: Install elastic_tool
         if: github.event_name == 'schedule'
         run: |
-          pip install escli-tool==0.2.0
+          pip install escli-tool==0.2.1
           
       - name: Collect pr info from vllm-project/vllm-ascend
         if: github.event_name == 'schedule'