ci: fixed the error of running unit testing code

.github/workflows/gen_whl_to_pypi_rapidocr.yml

@@ -30,9 +30,9 @@ jobs:
           pip install -r requirements.txt
           pip install pytest wheel get_pypi_latest_version openvino==2023.3.0 onnxruntime
           pip install torch torchvision torchaudio --index-url https://download.pytorch.org/whl/cpu
-          python -m pip install paddlepaddle==3.0.0rc1 -i https://www.paddlepaddle.org.cn/packages/stable/cpu/
+          python -m pip install paddlepaddle==3.1.1 -i https://www.paddlepaddle.org.cn/packages/stable/cpu/
 
-          pytest tests/test_main.py
+          pytest tests/test_*.py
 
   GenerateWHL_PushPyPi:
     needs: UnitTesting