[LLM] add token metrics after regular & save step

[SylarTiaNII]

PR types

New features

PR changes

Others

Description

add token metrics to log

[paddle-bot]

Thanks for your contribution!

[codecov]

Codecov Report

Attention: Patch coverage is 27.27273% with 8 lines in your changes missing coverage. Please review.

Project coverage is 55.19%. Comparing base (b59f91f) to head (43548ff).
Report is 2 commits behind head on incubate/paddlenlp-fleety.

Files with missing lines	Patch %	Lines
paddlenlp/trainer/trainer.py	25.00%	6 Missing ⚠️
paddlenlp/trainer/trainer_utils.py	0.00%	2 Missing ⚠️

Additional details and impacted files

@@                      Coverage Diff                      @@
##           incubate/paddlenlp-fleety    #9146      +/-   ##
=============================================================
- Coverage                      55.19%   55.19%   -0.01%     
=============================================================
  Files                            621      621              
  Lines                          96751    96774      +23     
=============================================================
+ Hits                           53406    53416      +10     
- Misses                         43345    43358      +13     

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