downgrade paddle to 2.4.2 until 2.5.2 release

app.py

@@ -1,6 +1,6 @@
 import os
-# os.system('pip install paddlepaddle')
-os.system('pip install paddlepaddle==0.0.0 -f https://www.paddlepaddle.org.cn/whl/linux/cpu-mkl/develop.html')
+os.system('pip install paddlepaddle==2.4.2')
+# os.system('pip install paddlepaddle==0.0.0 -f https://www.paddlepaddle.org.cn/whl/linux/cpu-mkl/develop.html')
 os.system('pip install paddleocr')
 from paddleocr import PaddleOCR, draw_ocr
 from PIL import Image