fix benchmark det_r50_vd_pse_v2_0 train error

[GreatV]

This pull request includes changes to the ppocr data augmentation and its corresponding tests to update the data type of polys from a list to a numpy array. This ensures consistency and compatibility with other numpy operations.

Changes to ppocr data augmentation:

• ppocr/data/imaug/iaa_augment.py: Modified the __call__ method to set data["polys"] as a numpy array instead of a list.

Updates to tests:

• tests/test_iaa_augment.py: Updated the test test_iaa_augment_default to check that transformed_data["polys"] is a numpy array instead of a list.

Fixes:

• upgrade to numpy 2.0 and remove imgaug #13937 (comment)

[paddle-bot]

Thanks for your contribution!