add demo.py for all kws models (#2107)

sugarcase

2024-09-25 8cd8e25f180b57c74f1ae7fd39001e5af4c20f8b

 runtime/python/http/requirements.txt

@@ -1,6 +1,6 @@
modelscope>=1.8.4
modelscope>=1.11.1
funasr>=1.0.5
fastapi>=0.95.1
ffmpeg-python
aiofiles
uvicorn
requests