update paddleclas to 2.5.1 in requirements.txt and add an .ttf font file (#5639)

* update paddleclas to 2.5.1 in requirements.txt and add an .ttf font file

* update requirements.txt

modelcenter/PP-ShiTuV2/APP/app.py

@@ -154,4 +154,4 @@ with gr.Blocks() as demo:
     btn1.click(fn=clear_all, inputs=None, outputs=[img_in, img_out, json_out])
     gr.Button.style(1)
 
-demo.launch(share=True)
+demo.launch()

modelcenter/PP-ShiTuV2/APP/requirements.txt

 gradio
 paddlepaddle
-paddleclas==2.5.0
+paddleclas