【FSDP】Add FSDP config

[Xing-lil]

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.

PR types

Others

PR changes

Others

Description

add FSDP config
using FSDP with sharding: "fsdp" in yaml

[paddle-bot]

Thanks for your contribution!

[codecov-commenter]

Codecov Report

❌ Patch coverage is 40.00000% with 3 lines in your changes missing coverage. Please review.
⚠️ Please upload report for BASE (develop@ae555e1). Learn more about missing BASE report.

Files with missing lines	Patch %	Lines
paddleformers/trainer/trainer.py	25.00%	3 Missing ⚠️

❌ Your patch status has failed because the patch coverage (40.00%) is below the target coverage (75.00%). You can increase the patch coverage or adjust the target coverage.

Additional details and impacted files

@@            Coverage Diff             @@
##             develop    #4218   +/-   ##
==========================================
  Coverage           ?   33.81%           
==========================================
  Files              ?      467           
  Lines              ?    88415           
  Branches           ?        0           
==========================================
  Hits               ?    29895           
  Misses             ?    58520           
  Partials           ?        0           

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.