fix chat cli ArgumentError error happened in python 3.11

[RunningLeon]

Motivation

fix chat cli as in #1396

Modification

Please briefly describe what modification is made in this PR.

BC-breaking (Optional)

Does the modification introduce changes that break the backward-compatibility of the downstream repositories?
If so, please describe how it breaks the compatibility and how the downstream projects should modify their code to keep compatibility with this PR.

Use cases (Optional)

If this PR introduces a new feature, it is better to list some use cases here, and update the documentation.

Checklist

1. Pre-commit or other linting tools are used to fix the potential lint issues.
2. The modification is covered by complete unit tests. If not, please add more unit tests to ensure the correctness.
3. If the modification has a dependency on downstream projects of a newer version, this PR should be tested with all supported versions of downstream projects.
4. The documentation has been modified accordingly, like docstring or example tutorials.

[zhulinJulia24]

看代码逻辑，只修复了chat cli。这个pr是否需要一起修复lite、 serve等的cli，我们这边可以手动触发回归自动化 @RunningLeon

[RunningLeon]

看代码逻辑，只修复了chat cli。这个pr是否需要一起修复lite、 serve等的cli，我们这边可以手动触发回归自动化 @RunningLeon

不需要的。

[zhulinJulia24]

看代码逻辑，只修复了chat cli。这个pr是否需要一起修复lite、 serve等的cli，我们这边可以手动触发回归自动化 @RunningLeon

不需要的。

好滴，我们跑个311下的pr_test看看

[zhulinJulia24]

lgtm

test basic cli under python3.11
'lite', 'serve', 'convert', 'list', 'check_env', 'chat' all passed

[AllentDan]

Tested OK with lmdeploy chat command for python 3.10.10