Fix sharding < 100 limitation bug

[sneaxiy]

PR types

Bug fixes

PR changes

Others

Description

Cherry-pick #8141 .

[paddle-bot]

Thanks for your contribution!

[ZHUI]

LGTM

[codecov]

Codecov Report

Attention: Patch coverage is 9.09091% with 10 lines in your changes are missing coverage. Please review.

Project coverage is 55.38%. Comparing base (5779186) to head (87e5ee0).
Report is 3 commits behind head on develop.

Files	Patch %	Lines
paddlenlp/trainer/training_args.py	9.09%	10 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #8146      +/-   ##
===========================================
- Coverage    56.45%   55.38%   -1.07%     
===========================================
  Files          596      596              
  Lines        91602    91605       +3     
===========================================
- Hits         51711    50733     -978     
- Misses       39891    40872     +981     

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