Release v3.9.1

🚀 Features

• (python) add PP-OCRv6 PaddlePaddle backend support (#696) by @JinmingMei in 29b812f
• support PP-OCRv6 PyTorch as the inference engine by @SWHL in 370f01d
• add PP-OCrv6 MNN backend support.

🐛 Bug Fixes

• adjust PP-OCRv6 Paddle model key names in YAML config by @SWHL in c184325

⚙️ Miscellaneous Tasks

• update pre-commit rule by @SWHL in 7fe716f
• add missing scripts of PyTorch module by @SWHL in 2849009

🎉 Contributors

• @SWHL
• @jaminmei

Full Changelog: 3.9.1