[PPDiffusers] add lora rank option

[JunnYu]

PR types

PR changes

Description

[paddle-bot]

Thanks for your contribution!

[codecov]

Codecov Report

Merging #4894 (ca5130d) into develop (50cd4cf) will increase coverage by 0.47%.
The diff coverage is n/a.

@@             Coverage Diff             @@
##           develop    #4894      +/-   ##
===========================================
+ Coverage    44.64%   45.12%   +0.47%     
===========================================
  Files          446      447       +1     
  Lines        64373    64509     +136     
===========================================
+ Hits         28740    29107     +367     
+ Misses       35633    35402     -231     

Impacted Files	Coverage Δ
paddlenlp/transformers/generation_utils.py	81.42% <0.00%> (-0.47%)	⬇️
paddlenlp/taskflow/task.py	51.62% <0.00%> (-0.37%)	⬇️
paddlenlp/transformers/mt5/modeling.py	84.37% <0.00%> (-0.31%)	⬇️
paddlenlp/transformers/__init__.py	100.00% <0.00%> (ø)
paddlenlp/transformers/auto/configuration.py	89.10% <0.00%> (ø)
paddlenlp/transformers/ernie/modeling.py	85.30% <0.00%> (+0.08%)	⬆️
paddlenlp/transformers/roberta/modeling.py	92.08% <0.00%> (+0.25%)	⬆️
paddlenlp/transformers/tokenizer_utils_base.py	79.23% <0.00%> (+0.29%)	⬆️
paddlenlp/transformers/utils.py	66.38% <0.00%> (+0.57%)	⬆️
paddlenlp/transformers/model_utils.py	78.66% <0.00%> (+1.29%)	⬆️
... and 4 more

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[sijunhe]

lgtm