[Feature] Optimize config saving.

[ZHUI]

PR types

New features

PR changes

optimize config

Description

optimize config

[paddle-bot]

Thanks for your contribution!

[codecov]

Codecov Report

Attention: Patch coverage is 88.07339% with 13 lines in your changes missing coverage. Please review.

Project coverage is 54.41%. Comparing base (4609d07) to head (86afe4e).
Report is 248 commits behind head on develop.

Files with missing lines	Patch %	Lines
paddlenlp/transformers/configuration_utils.py	88.04%	11 Missing ⚠️
paddlenlp/transformers/qwen/modeling_pp.py	0.00%	2 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #8490      +/-   ##
===========================================
- Coverage    54.42%   54.41%   -0.02%     
===========================================
  Files          632      632              
  Lines        99450    99470      +20     
===========================================
- Hits         54128    54126       -2     
- Misses       45322    45344      +22     

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[wawltor]

LGTM