【Inference】support rl

[gzy19990617]

Before submitting

• Lint code. If there are lint issues, please format the code first.

# Install and register `pre-commit` in the project folder
pip install pre-commit && pre-commit install

# Process previous code files separately
pre-commit run --file XXXX.py

• Add test cases into tests folder. If there are codecov issues, please add tests cases first.

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[paddle-bot]

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[codecov]

Codecov Report

Attention: Patch coverage is 0% with 256 lines in your changes missing coverage. Please review.

Project coverage is 48.57%. Comparing base (fa41a91) to head (1550ea0).
Report is 18 commits behind head on develop.

❗ Current head 1550ea0 differs from pull request most recent head 16fb030

Please upload reports for the commit 16fb030 to get more accurate results.

Files with missing lines	Patch %	Lines
...lenlp/experimental/transformers/inference_model.py	0.00%	158 Missing ⚠️
...lenlp/experimental/transformers/inference_utils.py	0.00%	67 Missing ⚠️
...dlenlp/experimental/transformers/qwen2/modeling.py	0.00%	19 Missing ⚠️
.../experimental/transformers/test_inference_model.py	0.00%	9 Missing ⚠️
paddlenlp/transformers/model_utils.py	0.00%	2 Missing ⚠️
paddlenlp/experimental/transformers/utils.py	0.00%	1 Missing ⚠️

❌ Your patch check has failed because the patch coverage (0.00%) is below the target coverage (80.00%). You can increase the patch coverage or adjust the target coverage.
❌ Your project check has failed because the head coverage (48.57%) is below the target coverage (58.00%). You can increase the head coverage or adjust the target coverage.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop   #10567      +/-   ##
===========================================
- Coverage    48.66%   48.57%   -0.09%     
===========================================
  Files          768      771       +3     
  Lines       126963   127357     +394     
===========================================
+ Hits         61782    61860      +78     
- Misses       65181    65497     +316     

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