[Bugfix] Fix fast tokenizer import error

[w5688414]

PR types

PR changes

Description

• fix [Bug]: AttributeError: module 'paddlenlp.transformers.ernie.tokenizer' has no attribute 'ErnieFastTokenizer' #6666

[paddle-bot]

Thanks for your contribution!

[ZHUI]

LGTM

[codecov]

Codecov Report

Attention: Patch coverage is 63.63636% with 4 lines in your changes are missing coverage. Please review.

Project coverage is 55.36%. Comparing base (0f45875) to head (a40ca40).
Report is 2 commits behind head on develop.

Files	Patch %	Lines
paddlenlp/transformers/auto/tokenizer.py	63.63%	4 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #8367      +/-   ##
===========================================
- Coverage    55.37%   55.36%   -0.01%     
===========================================
  Files          614      614              
  Lines        96015    96022       +7     
===========================================
+ Hits         53164    53167       +3     
- Misses       42851    42855       +4     

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