[Taskflow] fix task flow for qwen2

[Fantasy-02]

PR types

Bug fixes

PR changes

APIs

Description

增加qwen2到taskflow

[paddle-bot]

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[codecov]

Codecov Report

Attention: Patch coverage is 9.35673% with 155 lines in your changes missing coverage. Please review.

Project coverage is 52.69%. Comparing base (c9cfa99) to head (ceeaf60).
Report is 116 commits behind head on develop.

Files with missing lines	Patch %	Lines
paddlenlp/taskflow/information_extraction.py	9.27%	137 Missing ⚠️
paddlenlp/taskflow/task.py	5.26%	18 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #9645      +/-   ##
===========================================
- Coverage    52.85%   52.69%   -0.16%     
===========================================
  Files          676      710      +34     
  Lines       107827   111398    +3571     
===========================================
+ Hits         56990    58701    +1711     
- Misses       50837    52697    +1860     

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